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Finding the Fourth Proportional to 288,605.94, 432,965.61 and 88,892.34

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Solution

The fourth proportional to 288,605.94, 432,965.61 and 88,892.34 is: 133,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,605.94 : 432,965.61 = 88,892.34 : x
  2. Step 2: Convert to fraction form
    288,605.94/432,965.61 = 88,892.34/x
  3. Step 3: Cross multiply
    288,605.94x = 432,965.61 × 88,892.34
  4. Step 4: Simplify right side
    288,605.94x = 38,487,326,212.43
  5. Step 5: Solve for x
    x = 38,487,326,212.43/288,605.94
  6. Step 6: Final answer
    x = 133,355.97

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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.