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Finding the Fourth Proportional to 485,107.61, 727,762.21 and 204,627.29

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Solution

The fourth proportional to 485,107.61, 727,762.21 and 204,627.29 is: 306,983.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,107.61 : 727,762.21 = 204,627.29 : x
  2. Step 2: Convert to fraction form
    485,107.61/727,762.21 = 204,627.29/x
  3. Step 3: Cross multiply
    485,107.61x = 727,762.21 × 204,627.29
  4. Step 4: Simplify right side
    485,107.61x = 148,920,004,646.33
  5. Step 5: Solve for x
    x = 148,920,004,646.33/485,107.61
  6. Step 6: Final answer
    x = 306,983.45

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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.