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Finding the Fourth Proportional to 251,503.89, 377,256.75 and 238,890.36

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Solution

The fourth proportional to 251,503.89, 377,256.75 and 238,890.36 is: 358,336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,503.89 : 377,256.75 = 238,890.36 : x
  2. Step 2: Convert to fraction form
    251,503.89/377,256.75 = 238,890.36/x
  3. Step 3: Cross multiply
    251,503.89x = 377,256.75 × 238,890.36
  4. Step 4: Simplify right side
    251,503.89x = 90,123,000,819.93
  5. Step 5: Solve for x
    x = 90,123,000,819.93/251,503.89
  6. Step 6: Final answer
    x = 358,336.41

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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.