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Finding the Fourth Proportional to 215,532.63, 323,298.95 and 65,773.70

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Solution

The fourth proportional to 215,532.63, 323,298.95 and 65,773.70 is: 98,660.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,532.63 : 323,298.95 = 65,773.70 : x
  2. Step 2: Convert to fraction form
    215,532.63/323,298.95 = 65,773.70/x
  3. Step 3: Cross multiply
    215,532.63x = 323,298.95 × 65,773.70
  4. Step 4: Simplify right side
    215,532.63x = 21,264,568,147.62
  5. Step 5: Solve for x
    x = 21,264,568,147.62/215,532.63
  6. Step 6: Final answer
    x = 98,660.55

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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.