Home / 268,145.22-402,305.30-127,885.62

Finding the Fourth Proportional to 268,145.22, 402,305.30 and 127,885.62

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Solution

The fourth proportional to 268,145.22, 402,305.30 and 127,885.62 is: 191,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,145.22 : 402,305.30 = 127,885.62 : x
  2. Step 2: Convert to fraction form
    268,145.22/402,305.30 = 127,885.62/x
  3. Step 3: Cross multiply
    268,145.22x = 402,305.30 × 127,885.62
  4. Step 4: Simplify right side
    268,145.22x = 51,449,062,719.79
  5. Step 5: Solve for x
    x = 51,449,062,719.79/268,145.22
  6. Step 6: Final answer
    x = 191,870.15

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1.5x scale

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.