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Finding the Fourth Proportional to 192,412.52, 287,209.65 and 169,687.31

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Solution

The fourth proportional to 192,412.52, 287,209.65 and 169,687.31 is: 253,288.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,412.52 : 287,209.65 = 169,687.31 : x
  2. Step 2: Convert to fraction form
    192,412.52/287,209.65 = 169,687.31/x
  3. Step 3: Cross multiply
    192,412.52x = 287,209.65 × 169,687.31
  4. Step 4: Simplify right side
    192,412.52x = 48,735,833,191.86
  5. Step 5: Solve for x
    x = 48,735,833,191.86/192,412.52
  6. Step 6: Final answer
    x = 253,288.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.