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Finding the Fourth Proportional to 540,122.90, 810,184.35 and 185,140.40

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Solution

The fourth proportional to 540,122.90, 810,184.35 and 185,140.40 is: 277,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,122.90 : 810,184.35 = 185,140.40 : x
  2. Step 2: Convert to fraction form
    540,122.90/810,184.35 = 185,140.40/x
  3. Step 3: Cross multiply
    540,122.90x = 810,184.35 × 185,140.40
  4. Step 4: Simplify right side
    540,122.90x = 149,997,854,632.74
  5. Step 5: Solve for x
    x = 149,997,854,632.74/540,122.90
  6. Step 6: Final answer
    x = 277,710.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.