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Finding the Fourth Proportional to 347,058.68, 520,401.24 and 187,220.43

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Solution

The fourth proportional to 347,058.68, 520,401.24 and 187,220.43 is: 280,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,058.68 : 520,401.24 = 187,220.43 : x
  2. Step 2: Convert to fraction form
    347,058.68/520,401.24 = 187,220.43/x
  3. Step 3: Cross multiply
    347,058.68x = 520,401.24 × 187,220.43
  4. Step 4: Simplify right side
    347,058.68x = 97,429,743,925.33
  5. Step 5: Solve for x
    x = 97,429,743,925.33/347,058.68
  6. Step 6: Final answer
    x = 280,729.89

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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.