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Finding the Fourth Proportional to 387,266.48, 580,058.49 and 187,167.21

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Solution

The fourth proportional to 387,266.48, 580,058.49 and 187,167.21 is: 280,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,266.48 : 580,058.49 = 187,167.21 : x
  2. Step 2: Convert to fraction form
    387,266.48/580,058.49 = 187,167.21/x
  3. Step 3: Cross multiply
    387,266.48x = 580,058.49 × 187,167.21
  4. Step 4: Simplify right side
    387,266.48x = 108,567,929,210.11
  5. Step 5: Solve for x
    x = 108,567,929,210.11/387,266.48
  6. Step 6: Final answer
    x = 280,344.25

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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.