Home / 268,288.32-402,474.24-81,255.36

Finding the Fourth Proportional to 268,288.32, 402,474.24 and 81,255.36

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Solution

The fourth proportional to 268,288.32, 402,474.24 and 81,255.36 is: 121,895.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,288.32 : 402,474.24 = 81,255.36 : x
  2. Step 2: Convert to fraction form
    268,288.32/402,474.24 = 81,255.36/x
  3. Step 3: Cross multiply
    268,288.32x = 402,474.24 × 81,255.36
  4. Step 4: Simplify right side
    268,288.32x = 32,703,189,261.93
  5. Step 5: Solve for x
    x = 32,703,189,261.93/268,288.32
  6. Step 6: Final answer
    x = 121,895.69

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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.