Home / 351,490.23-527,126.28-126,821.55

Finding the Fourth Proportional to 351,490.23, 527,126.28 and 126,821.55

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Solution

The fourth proportional to 351,490.23, 527,126.28 and 126,821.55 is: 190,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,490.23 : 527,126.28 = 126,821.55 : x
  2. Step 2: Convert to fraction form
    351,490.23/527,126.28 = 126,821.55/x
  3. Step 3: Cross multiply
    351,490.23x = 527,126.28 × 126,821.55
  4. Step 4: Simplify right side
    351,490.23x = 66,850,971,875.33
  5. Step 5: Solve for x
    x = 66,850,971,875.33/351,490.23
  6. Step 6: Final answer
    x = 190,192.97

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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.