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Finding the Fourth Proportional to 377,469, 566,290.98 and 128,151

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Solution

The fourth proportional to 377,469, 566,290.98 and 128,151 is: 192,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,469 : 566,290.98 = 128,151 : x
  2. Step 2: Convert to fraction form
    377,469/566,290.98 = 128,151/x
  3. Step 3: Cross multiply
    377,469x = 566,290.98 × 128,151
  4. Step 4: Simplify right side
    377,469x = 72,570,755,377.98
  5. Step 5: Solve for x
    x = 72,570,755,377.98/377,469
  6. Step 6: Final answer
    x = 192,256.20

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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.