Home / 215,110.47-297,156-172,373.85

Finding the Fourth Proportional to 215,110.47, 297,156 and 172,373.85

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Solution

The fourth proportional to 215,110.47, 297,156 and 172,373.85 is: 238,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,110.47 : 297,156 = 172,373.85 : x
  2. Step 2: Convert to fraction form
    215,110.47/297,156 = 172,373.85/x
  3. Step 3: Cross multiply
    215,110.47x = 297,156 × 172,373.85
  4. Step 4: Simplify right side
    215,110.47x = 51,221,923,770.60
  5. Step 5: Solve for x
    x = 51,221,923,770.60/215,110.47
  6. Step 6: Final answer
    x = 238,119.16

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1.5x scale

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.