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Finding the Fourth Proportional to 318,944.52, 478,250.73 and 119,100.57

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Solution

The fourth proportional to 318,944.52, 478,250.73 and 119,100.57 is: 178,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,944.52 : 478,250.73 = 119,100.57 : x
  2. Step 2: Convert to fraction form
    318,944.52/478,250.73 = 119,100.57/x
  3. Step 3: Cross multiply
    318,944.52x = 478,250.73 × 119,100.57
  4. Step 4: Simplify right side
    318,944.52x = 56,959,934,545.92
  5. Step 5: Solve for x
    x = 56,959,934,545.92/318,944.52
  6. Step 6: Final answer
    x = 178,588.85

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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.