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Finding the Fourth Proportional to 291,266.96, 436,966.61 and 88,881.15

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Solution

The fourth proportional to 291,266.96, 436,966.61 and 88,881.15 is: 133,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,266.96 : 436,966.61 = 88,881.15 : x
  2. Step 2: Convert to fraction form
    291,266.96/436,966.61 = 88,881.15/x
  3. Step 3: Cross multiply
    291,266.96x = 436,966.61 × 88,881.15
  4. Step 4: Simplify right side
    291,266.96x = 38,838,096,002.62
  5. Step 5: Solve for x
    x = 38,838,096,002.62/291,266.96
  6. Step 6: Final answer
    x = 133,341.92

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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.