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Finding the Fourth Proportional to 289,141.14, 433,764.48 and 89,447.96

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Solution

The fourth proportional to 289,141.14, 433,764.48 and 89,447.96 is: 134,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,141.14 : 433,764.48 = 89,447.96 : x
  2. Step 2: Convert to fraction form
    289,141.14/433,764.48 = 89,447.96/x
  3. Step 3: Cross multiply
    289,141.14x = 433,764.48 × 89,447.96
  4. Step 4: Simplify right side
    289,141.14x = 38,799,347,856.46
  5. Step 5: Solve for x
    x = 38,799,347,856.46/289,141.14
  6. Step 6: Final answer
    x = 134,188.26

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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.