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Finding the Fourth Proportional to 169,318.40, 253,862.40 and 80,614.40

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Solution

The fourth proportional to 169,318.40, 253,862.40 and 80,614.40 is: 120,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,318.40 : 253,862.40 = 80,614.40 : x
  2. Step 2: Convert to fraction form
    169,318.40/253,862.40 = 80,614.40/x
  3. Step 3: Cross multiply
    169,318.40x = 253,862.40 × 80,614.40
  4. Step 4: Simplify right side
    169,318.40x = 20,464,965,058.56
  5. Step 5: Solve for x
    x = 20,464,965,058.56/169,318.40
  6. Step 6: Final answer
    x = 120,866.75

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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.