Home / 272,438.26-408,693.10-90,008.46

Finding the Fourth Proportional to 272,438.26, 408,693.10 and 90,008.46

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Solution

The fourth proportional to 272,438.26, 408,693.10 and 90,008.46 is: 135,024.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,438.26 : 408,693.10 = 90,008.46 : x
  2. Step 2: Convert to fraction form
    272,438.26/408,693.10 = 90,008.46/x
  3. Step 3: Cross multiply
    272,438.26x = 408,693.10 × 90,008.46
  4. Step 4: Simplify right side
    272,438.26x = 36,785,837,983.62
  5. Step 5: Solve for x
    x = 36,785,837,983.62/272,438.26
  6. Step 6: Final answer
    x = 135,024.49

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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.