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Finding the Fourth Proportional to 387,876.80, 581,809.98 and 151,385.60

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Solution

The fourth proportional to 387,876.80, 581,809.98 and 151,385.60 is: 227,076.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,876.80 : 581,809.98 = 151,385.60 : x
  2. Step 2: Convert to fraction form
    387,876.80/581,809.98 = 151,385.60/x
  3. Step 3: Cross multiply
    387,876.80x = 581,809.98 × 151,385.60
  4. Step 4: Simplify right side
    387,876.80x = 88,077,652,908.29
  5. Step 5: Solve for x
    x = 88,077,652,908.29/387,876.80
  6. Step 6: Final answer
    x = 227,076.36

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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.