Home / 211,268.76-316,689.78-132,438.24

Finding the Fourth Proportional to 211,268.76, 316,689.78 and 132,438.24

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Solution

The fourth proportional to 211,268.76, 316,689.78 and 132,438.24 is: 198,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,268.76 : 316,689.78 = 132,438.24 : x
  2. Step 2: Convert to fraction form
    211,268.76/316,689.78 = 132,438.24/x
  3. Step 3: Cross multiply
    211,268.76x = 316,689.78 × 132,438.24
  4. Step 4: Simplify right side
    211,268.76x = 41,941,837,089.19
  5. Step 5: Solve for x
    x = 41,941,837,089.19/211,268.76
  6. Step 6: Final answer
    x = 198,523.61

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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.