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Finding the Fourth Proportional to 290,499.92, 435,819.92 and 100,932.68

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Solution

The fourth proportional to 290,499.92, 435,819.92 and 100,932.68 is: 151,423.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,499.92 : 435,819.92 = 100,932.68 : x
  2. Step 2: Convert to fraction form
    290,499.92/435,819.92 = 100,932.68/x
  3. Step 3: Cross multiply
    290,499.92x = 435,819.92 × 100,932.68
  4. Step 4: Simplify right side
    290,499.92x = 43,988,472,522.99
  5. Step 5: Solve for x
    x = 43,988,472,522.99/290,499.92
  6. Step 6: Final answer
    x = 151,423.36

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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.