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Finding the Fourth Proportional to 540,306.32, 810,459.92 and 140,946.64

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Solution

The fourth proportional to 540,306.32, 810,459.92 and 140,946.64 is: 211,420.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,306.32 : 810,459.92 = 140,946.64 : x
  2. Step 2: Convert to fraction form
    540,306.32/810,459.92 = 140,946.64/x
  3. Step 3: Cross multiply
    540,306.32x = 810,459.92 × 140,946.64
  4. Step 4: Simplify right side
    540,306.32x = 114,231,602,578.67
  5. Step 5: Solve for x
    x = 114,231,602,578.67/540,306.32
  6. Step 6: Final answer
    x = 211,420.07

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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.