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Finding the Fourth Proportional to 316,818.24, 475,228.38 and 80,160.90

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Solution

The fourth proportional to 316,818.24, 475,228.38 and 80,160.90 is: 120,241.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,818.24 : 475,228.38 = 80,160.90 : x
  2. Step 2: Convert to fraction form
    316,818.24/475,228.38 = 80,160.90/x
  3. Step 3: Cross multiply
    316,818.24x = 475,228.38 × 80,160.90
  4. Step 4: Simplify right side
    316,818.24x = 38,094,734,646.34
  5. Step 5: Solve for x
    x = 38,094,734,646.34/316,818.24
  6. Step 6: Final answer
    x = 120,241.61

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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.