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Finding the Fourth Proportional to 216,292.92, 324,470.40 and 66,545.76

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Solution

The fourth proportional to 216,292.92, 324,470.40 and 66,545.76 is: 99,828.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,292.92 : 324,470.40 = 66,545.76 : x
  2. Step 2: Convert to fraction form
    216,292.92/324,470.40 = 66,545.76/x
  3. Step 3: Cross multiply
    216,292.92x = 324,470.40 × 66,545.76
  4. Step 4: Simplify right side
    216,292.92x = 21,592,129,365.50
  5. Step 5: Solve for x
    x = 21,592,129,365.50/216,292.92
  6. Step 6: Final answer
    x = 99,828.18

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1.5x scale

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.