Home / 211,331.28-316,998.16-53,560.20

Finding the Fourth Proportional to 211,331.28, 316,998.16 and 53,560.20

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Solution

The fourth proportional to 211,331.28, 316,998.16 and 53,560.20 is: 80,340.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,331.28 : 316,998.16 = 53,560.20 : x
  2. Step 2: Convert to fraction form
    211,331.28/316,998.16 = 53,560.20/x
  3. Step 3: Cross multiply
    211,331.28x = 316,998.16 × 53,560.20
  4. Step 4: Simplify right side
    211,331.28x = 16,978,484,849.23
  5. Step 5: Solve for x
    x = 16,978,484,849.23/211,331.28
  6. Step 6: Final answer
    x = 80,340.61

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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.