Home / 215,349.47-297,179.30-119,856.20

Finding the Fourth Proportional to 215,349.47, 297,179.30 and 119,856.20

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Solution

The fourth proportional to 215,349.47, 297,179.30 and 119,856.20 is: 165,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,349.47 : 297,179.30 = 119,856.20 : x
  2. Step 2: Convert to fraction form
    215,349.47/297,179.30 = 119,856.20/x
  3. Step 3: Cross multiply
    215,349.47x = 297,179.30 × 119,856.20
  4. Step 4: Simplify right side
    215,349.47x = 35,618,781,017.38
  5. Step 5: Solve for x
    x = 35,618,781,017.38/215,349.47
  6. Step 6: Final answer
    x = 165,399.90

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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.