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Finding the Fourth Proportional to 215,233.80, 322,850.70 and 65,472.90

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Solution

The fourth proportional to 215,233.80, 322,850.70 and 65,472.90 is: 98,209.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,233.80 : 322,850.70 = 65,472.90 : x
  2. Step 2: Convert to fraction form
    215,233.80/322,850.70 = 65,472.90/x
  3. Step 3: Cross multiply
    215,233.80x = 322,850.70 × 65,472.90
  4. Step 4: Simplify right side
    215,233.80x = 21,137,971,596.03
  5. Step 5: Solve for x
    x = 21,137,971,596.03/215,233.80
  6. Step 6: Final answer
    x = 98,209.35

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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.