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Finding the Fourth Proportional to 253,737.65, 380,458.89 and 95,978.41

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Solution

The fourth proportional to 253,737.65, 380,458.89 and 95,978.41 is: 143,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,737.65 : 380,458.89 = 95,978.41 : x
  2. Step 2: Convert to fraction form
    253,737.65/380,458.89 = 95,978.41/x
  3. Step 3: Cross multiply
    253,737.65x = 380,458.89 × 95,978.41
  4. Step 4: Simplify right side
    253,737.65x = 36,515,838,381.42
  5. Step 5: Solve for x
    x = 36,515,838,381.42/253,737.65
  6. Step 6: Final answer
    x = 143,911.78

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1.5x scale

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.