Home / 268,360.32-402,516.96-90,863.28

Finding the Fourth Proportional to 268,360.32, 402,516.96 and 90,863.28

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Solution

The fourth proportional to 268,360.32, 402,516.96 and 90,863.28 is: 136,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,360.32 : 402,516.96 = 90,863.28 : x
  2. Step 2: Convert to fraction form
    268,360.32/402,516.96 = 90,863.28/x
  3. Step 3: Cross multiply
    268,360.32x = 402,516.96 × 90,863.28
  4. Step 4: Simplify right side
    268,360.32x = 36,574,011,241.23
  5. Step 5: Solve for x
    x = 36,574,011,241.23/268,360.32
  6. Step 6: Final answer
    x = 136,286.96

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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.