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Finding the Fourth Proportional to 442,077.59, 663,245.78 and 142,552.14

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Solution

The fourth proportional to 442,077.59, 663,245.78 and 142,552.14 is: 213,869.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,077.59 : 663,245.78 = 142,552.14 : x
  2. Step 2: Convert to fraction form
    442,077.59/663,245.78 = 142,552.14/x
  3. Step 3: Cross multiply
    442,077.59x = 663,245.78 × 142,552.14
  4. Step 4: Simplify right side
    442,077.59x = 94,547,104,572.21
  5. Step 5: Solve for x
    x = 94,547,104,572.21/442,077.59
  6. Step 6: Final answer
    x = 213,869.94

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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.