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Finding the Fourth Proportional to 377,819.01, 521,253.29 and 214,380.87

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Solution

The fourth proportional to 377,819.01, 521,253.29 and 214,380.87 is: 295,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,819.01 : 521,253.29 = 214,380.87 : x
  2. Step 2: Convert to fraction form
    377,819.01/521,253.29 = 214,380.87/x
  3. Step 3: Cross multiply
    377,819.01x = 521,253.29 × 214,380.87
  4. Step 4: Simplify right side
    377,819.01x = 111,746,732,381.82
  5. Step 5: Solve for x
    x = 111,746,732,381.82/377,819.01
  6. Step 6: Final answer
    x = 295,767.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.