Home / 215,423.43-297,278.53-119,930.13

Finding the Fourth Proportional to 215,423.43, 297,278.53 and 119,930.13

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Solution

The fourth proportional to 215,423.43, 297,278.53 and 119,930.13 is: 165,500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,423.43 : 297,278.53 = 119,930.13 : x
  2. Step 2: Convert to fraction form
    215,423.43/297,278.53 = 119,930.13/x
  3. Step 3: Cross multiply
    215,423.43x = 297,278.53 × 119,930.13
  4. Step 4: Simplify right side
    215,423.43x = 35,652,652,749.11
  5. Step 5: Solve for x
    x = 35,652,652,749.11/215,423.43
  6. Step 6: Final answer
    x = 165,500.35

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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.