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Finding the Fourth Proportional to 216,292.40, 324,469.65 and 66,545.27

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Solution

The fourth proportional to 216,292.40, 324,469.65 and 66,545.27 is: 99,827.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,292.40 : 324,469.65 = 66,545.27 : x
  2. Step 2: Convert to fraction form
    216,292.40/324,469.65 = 66,545.27/x
  3. Step 3: Cross multiply
    216,292.40x = 324,469.65 × 66,545.27
  4. Step 4: Simplify right side
    216,292.40x = 21,591,920,466.06
  5. Step 5: Solve for x
    x = 21,591,920,466.06/216,292.40
  6. Step 6: Final answer
    x = 99,827.46

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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.