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Finding the Fourth Proportional to 402,725.53, 603,711.01 and 136,299.52

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Solution

The fourth proportional to 402,725.53, 603,711.01 and 136,299.52 is: 204,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,725.53 : 603,711.01 = 136,299.52 : x
  2. Step 2: Convert to fraction form
    402,725.53/603,711.01 = 136,299.52/x
  3. Step 3: Cross multiply
    402,725.53x = 603,711.01 × 136,299.52
  4. Step 4: Simplify right side
    402,725.53x = 82,285,520,881.72
  5. Step 5: Solve for x
    x = 82,285,520,881.72/402,725.53
  6. Step 6: Final answer
    x = 204,321.59

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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.