Home / 268,189.83-402,284.75-68,510.66

Finding the Fourth Proportional to 268,189.83, 402,284.75 and 68,510.66

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Solution

The fourth proportional to 268,189.83, 402,284.75 and 68,510.66 is: 102,765.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,189.83 : 402,284.75 = 68,510.66 : x
  2. Step 2: Convert to fraction form
    268,189.83/402,284.75 = 68,510.66/x
  3. Step 3: Cross multiply
    268,189.83x = 402,284.75 × 68,510.66
  4. Step 4: Simplify right side
    268,189.83x = 27,560,791,376.46
  5. Step 5: Solve for x
    x = 27,560,791,376.46/268,189.83
  6. Step 6: Final answer
    x = 102,765.98

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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.