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Finding the Fourth Proportional to 215,442.92, 322,861.87 and 170,265.65

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Solution

The fourth proportional to 215,442.92, 322,861.87 and 170,265.65 is: 255,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,442.92 : 322,861.87 = 170,265.65 : x
  2. Step 2: Convert to fraction form
    215,442.92/322,861.87 = 170,265.65/x
  3. Step 3: Cross multiply
    215,442.92x = 322,861.87 × 170,265.65
  4. Step 4: Simplify right side
    215,442.92x = 54,972,287,957.31
  5. Step 5: Solve for x
    x = 54,972,287,957.31/215,442.92
  6. Step 6: Final answer
    x = 255,159.41

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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.