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Finding the Fourth Proportional to 484,666.60, 727,115.10 and 204,039.40

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Solution

The fourth proportional to 484,666.60, 727,115.10 and 204,039.40 is: 306,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,666.60 : 727,115.10 = 204,039.40 : x
  2. Step 2: Convert to fraction form
    484,666.60/727,115.10 = 204,039.40/x
  3. Step 3: Cross multiply
    484,666.60x = 727,115.10 × 204,039.40
  4. Step 4: Simplify right side
    484,666.60x = 148,360,128,734.94
  5. Step 5: Solve for x
    x = 148,360,128,734.94/484,666.60
  6. Step 6: Final answer
    x = 306,107.60

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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.