Home / 262,631.92-393,890.28-75,602.80

Finding the Fourth Proportional to 262,631.92, 393,890.28 and 75,602.80

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Solution

The fourth proportional to 262,631.92, 393,890.28 and 75,602.80 is: 113,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,631.92 : 393,890.28 = 75,602.80 : x
  2. Step 2: Convert to fraction form
    262,631.92/393,890.28 = 75,602.80/x
  3. Step 3: Cross multiply
    262,631.92x = 393,890.28 × 75,602.80
  4. Step 4: Simplify right side
    262,631.92x = 29,779,208,060.78
  5. Step 5: Solve for x
    x = 29,779,208,060.78/262,631.92
  6. Step 6: Final answer
    x = 113,387.62

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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.