Home / 211,761.27-317,689.29-71,516.25

Finding the Fourth Proportional to 211,761.27, 317,689.29 and 71,516.25

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Solution

The fourth proportional to 211,761.27, 317,689.29 and 71,516.25 is: 107,290.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,761.27 : 317,689.29 = 71,516.25 : x
  2. Step 2: Convert to fraction form
    211,761.27/317,689.29 = 71,516.25/x
  3. Step 3: Cross multiply
    211,761.27x = 317,689.29 × 71,516.25
  4. Step 4: Simplify right side
    211,761.27x = 22,719,946,685.96
  5. Step 5: Solve for x
    x = 22,719,946,685.96/211,761.27
  6. Step 6: Final answer
    x = 107,290.38

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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.