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Finding the Fourth Proportional to 403,552.60, 556,635.90 and 252,387.16

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Solution

The fourth proportional to 403,552.60, 556,635.90 and 252,387.16 is: 348,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,552.60 : 556,635.90 = 252,387.16 : x
  2. Step 2: Convert to fraction form
    403,552.60/556,635.90 = 252,387.16/x
  3. Step 3: Cross multiply
    403,552.60x = 556,635.90 × 252,387.16
  4. Step 4: Simplify right side
    403,552.60x = 140,487,753,955.04
  5. Step 5: Solve for x
    x = 140,487,753,955.04/403,552.60
  6. Step 6: Final answer
    x = 348,127.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.