Home / 288,569.31-398,218.69-157,741.14

Finding the Fourth Proportional to 288,569.31, 398,218.69 and 157,741.14

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Solution

The fourth proportional to 288,569.31, 398,218.69 and 157,741.14 is: 217,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,569.31 : 398,218.69 = 157,741.14 : x
  2. Step 2: Convert to fraction form
    288,569.31/398,218.69 = 157,741.14/x
  3. Step 3: Cross multiply
    288,569.31x = 398,218.69 × 157,741.14
  4. Step 4: Simplify right side
    288,569.31x = 62,815,469,341.20
  5. Step 5: Solve for x
    x = 62,815,469,341.20/288,569.31
  6. Step 6: Final answer
    x = 217,678.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.