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Finding the Fourth Proportional to 374,442, 561,663.09 and 125,124

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Solution

The fourth proportional to 374,442, 561,663.09 and 125,124 is: 187,686.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,442 : 561,663.09 = 125,124 : x
  2. Step 2: Convert to fraction form
    374,442/561,663.09 = 125,124/x
  3. Step 3: Cross multiply
    374,442x = 561,663.09 × 125,124
  4. Step 4: Simplify right side
    374,442x = 70,277,532,473.16
  5. Step 5: Solve for x
    x = 70,277,532,473.16/374,442
  6. Step 6: Final answer
    x = 187,686.03

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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.