Home / 287,508.40-396,764.30-158,451.52

Finding the Fourth Proportional to 287,508.40, 396,764.30 and 158,451.52

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Solution

The fourth proportional to 287,508.40, 396,764.30 and 158,451.52 is: 218,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,508.40 : 396,764.30 = 158,451.52 : x
  2. Step 2: Convert to fraction form
    287,508.40/396,764.30 = 158,451.52/x
  3. Step 3: Cross multiply
    287,508.40x = 396,764.30 × 158,451.52
  4. Step 4: Simplify right side
    287,508.40x = 62,867,908,392.49
  5. Step 5: Solve for x
    x = 62,867,908,392.49/287,508.40
  6. Step 6: Final answer
    x = 218,664.60

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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.