Home / 268,288.38-402,182.33-90,671.18

Finding the Fourth Proportional to 268,288.38, 402,182.33 and 90,671.18

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Solution

The fourth proportional to 268,288.38, 402,182.33 and 90,671.18 is: 135,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,288.38 : 402,182.33 = 90,671.18 : x
  2. Step 2: Convert to fraction form
    268,288.38/402,182.33 = 90,671.18/x
  3. Step 3: Cross multiply
    268,288.38x = 402,182.33 × 90,671.18
  4. Step 4: Simplify right side
    268,288.38x = 36,466,343,971.98
  5. Step 5: Solve for x
    x = 36,466,343,971.98/268,288.38
  6. Step 6: Final answer
    x = 135,922.19

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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.