Home / 287,519.19-396,779.17-158,462.27

Finding the Fourth Proportional to 287,519.19, 396,779.17 and 158,462.27

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Solution

The fourth proportional to 287,519.19, 396,779.17 and 158,462.27 is: 218,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,519.19 : 396,779.17 = 158,462.27 : x
  2. Step 2: Convert to fraction form
    287,519.19/396,779.17 = 158,462.27/x
  3. Step 3: Cross multiply
    287,519.19x = 396,779.17 × 158,462.27
  4. Step 4: Simplify right side
    287,519.19x = 62,874,527,966.92
  5. Step 5: Solve for x
    x = 62,874,527,966.92/287,519.19
  6. Step 6: Final answer
    x = 218,679.41

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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.