Home / 285,854.31-394,476.24-156,790.17

Finding the Fourth Proportional to 285,854.31, 394,476.24 and 156,790.17

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Solution

The fourth proportional to 285,854.31, 394,476.24 and 156,790.17 is: 216,368.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,854.31 : 394,476.24 = 156,790.17 : x
  2. Step 2: Convert to fraction form
    285,854.31/394,476.24 = 156,790.17/x
  3. Step 3: Cross multiply
    285,854.31x = 394,476.24 × 156,790.17
  4. Step 4: Simplify right side
    285,854.31x = 61,849,996,730.56
  5. Step 5: Solve for x
    x = 61,849,996,730.56/285,854.31
  6. Step 6: Final answer
    x = 216,368.95

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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.