Home / 351,499.23-527,139.90-126,830.61

Finding the Fourth Proportional to 351,499.23, 527,139.90 and 126,830.61

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Solution

The fourth proportional to 351,499.23, 527,139.90 and 126,830.61 is: 190,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,499.23 : 527,139.90 = 126,830.61 : x
  2. Step 2: Convert to fraction form
    351,499.23/527,139.90 = 126,830.61/x
  3. Step 3: Cross multiply
    351,499.23x = 527,139.90 × 126,830.61
  4. Step 4: Simplify right side
    351,499.23x = 66,857,475,072.34
  5. Step 5: Solve for x
    x = 66,857,475,072.34/351,499.23
  6. Step 6: Final answer
    x = 190,206.60

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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.