Home / 211,249.74-316,661.24-132,419.28

Finding the Fourth Proportional to 211,249.74, 316,661.24 and 132,419.28

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Solution

The fourth proportional to 211,249.74, 316,661.24 and 132,419.28 is: 198,495.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,249.74 : 316,661.24 = 132,419.28 : x
  2. Step 2: Convert to fraction form
    211,249.74/316,661.24 = 132,419.28/x
  3. Step 3: Cross multiply
    211,249.74x = 316,661.24 × 132,419.28
  4. Step 4: Simplify right side
    211,249.74x = 41,932,053,404.71
  5. Step 5: Solve for x
    x = 41,932,053,404.71/211,249.74
  6. Step 6: Final answer
    x = 198,495.17

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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.