Home / 272,422.20-408,545.34-99,289.32

Finding the Fourth Proportional to 272,422.20, 408,545.34 and 99,289.32

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Solution

The fourth proportional to 272,422.20, 408,545.34 and 99,289.32 is: 148,901.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,422.20 : 408,545.34 = 99,289.32 : x
  2. Step 2: Convert to fraction form
    272,422.20/408,545.34 = 99,289.32/x
  3. Step 3: Cross multiply
    272,422.20x = 408,545.34 × 99,289.32
  4. Step 4: Simplify right side
    272,422.20x = 40,564,188,997.77
  5. Step 5: Solve for x
    x = 40,564,188,997.77/272,422.20
  6. Step 6: Final answer
    x = 148,901.92

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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.