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Finding the Fourth Proportional to 540,004.80, 810,007.20 and 165,979.20

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Solution

The fourth proportional to 540,004.80, 810,007.20 and 165,979.20 is: 248,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,004.80 : 810,007.20 = 165,979.20 : x
  2. Step 2: Convert to fraction form
    540,004.80/810,007.20 = 165,979.20/x
  3. Step 3: Cross multiply
    540,004.80x = 810,007.20 × 165,979.20
  4. Step 4: Simplify right side
    540,004.80x = 134,444,347,050.24
  5. Step 5: Solve for x
    x = 134,444,347,050.24/540,004.80
  6. Step 6: Final answer
    x = 248,968.80

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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.