Home / 371,516.96-557,275.38-91,031.78

Finding the Fourth Proportional to 371,516.96, 557,275.38 and 91,031.78

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Solution

The fourth proportional to 371,516.96, 557,275.38 and 91,031.78 is: 136,547.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,516.96 : 557,275.38 = 91,031.78 : x
  2. Step 2: Convert to fraction form
    371,516.96/557,275.38 = 91,031.78/x
  3. Step 3: Cross multiply
    371,516.96x = 557,275.38 × 91,031.78
  4. Step 4: Simplify right side
    371,516.96x = 50,729,769,791.58
  5. Step 5: Solve for x
    x = 50,729,769,791.58/371,516.96
  6. Step 6: Final answer
    x = 136,547.66

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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.