Home / 211,475.20-291,760.08-120,765.76

Finding the Fourth Proportional to 211,475.20, 291,760.08 and 120,765.76

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Solution

The fourth proportional to 211,475.20, 291,760.08 and 120,765.76 is: 166,613.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,475.20 : 291,760.08 = 120,765.76 : x
  2. Step 2: Convert to fraction form
    211,475.20/291,760.08 = 120,765.76/x
  3. Step 3: Cross multiply
    211,475.20x = 291,760.08 × 120,765.76
  4. Step 4: Simplify right side
    211,475.20x = 35,234,627,798.86
  5. Step 5: Solve for x
    x = 35,234,627,798.86/211,475.20
  6. Step 6: Final answer
    x = 166,613.52

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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.