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Finding the Fourth Proportional to 151,411.60, 227,141.40 and 51,581.20

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Solution

The fourth proportional to 151,411.60, 227,141.40 and 51,581.20 is: 77,379.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,411.60 : 227,141.40 = 51,581.20 : x
  2. Step 2: Convert to fraction form
    151,411.60/227,141.40 = 51,581.20/x
  3. Step 3: Cross multiply
    151,411.60x = 227,141.40 × 51,581.20
  4. Step 4: Simplify right side
    151,411.60x = 11,716,225,981.68
  5. Step 5: Solve for x
    x = 11,716,225,981.68/151,411.60
  6. Step 6: Final answer
    x = 77,379.98

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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.