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Finding the Fourth Proportional to 255,471.91, 352,566.98 and 142,294.66

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Solution

The fourth proportional to 255,471.91, 352,566.98 and 142,294.66 is: 196,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,471.91 : 352,566.98 = 142,294.66 : x
  2. Step 2: Convert to fraction form
    255,471.91/352,566.98 = 142,294.66/x
  3. Step 3: Cross multiply
    255,471.91x = 352,566.98 × 142,294.66
  4. Step 4: Simplify right side
    255,471.91x = 50,168,397,487.04
  5. Step 5: Solve for x
    x = 50,168,397,487.04/255,471.91
  6. Step 6: Final answer
    x = 196,375.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.