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Finding the Fourth Proportional to 353,034.71, 529,241.62 and 139,952.30

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Solution

The fourth proportional to 353,034.71, 529,241.62 and 139,952.30 is: 209,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,034.71 : 529,241.62 = 139,952.30 : x
  2. Step 2: Convert to fraction form
    353,034.71/529,241.62 = 139,952.30/x
  3. Step 3: Cross multiply
    353,034.71x = 529,241.62 × 139,952.30
  4. Step 4: Simplify right side
    353,034.71x = 74,068,581,974.73
  5. Step 5: Solve for x
    x = 74,068,581,974.73/353,034.71
  6. Step 6: Final answer
    x = 209,805.38

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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.