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Finding the Fourth Proportional to 377,467, 566,287.98 and 128,149

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Solution

The fourth proportional to 377,467, 566,287.98 and 128,149 is: 192,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,467 : 566,287.98 = 128,149 : x
  2. Step 2: Convert to fraction form
    377,467/566,287.98 = 128,149/x
  3. Step 3: Cross multiply
    377,467x = 566,287.98 × 128,149
  4. Step 4: Simplify right side
    377,467x = 72,569,238,349.02
  5. Step 5: Solve for x
    x = 72,569,238,349.02/377,467
  6. Step 6: Final answer
    x = 192,253.20

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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.