Home / 285,217.49-427,211.15-268,449.05

Finding the Fourth Proportional to 285,217.49, 427,211.15 and 268,449.05

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Solution

The fourth proportional to 285,217.49, 427,211.15 and 268,449.05 is: 402,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,217.49 : 427,211.15 = 268,449.05 : x
  2. Step 2: Convert to fraction form
    285,217.49/427,211.15 = 268,449.05/x
  3. Step 3: Cross multiply
    285,217.49x = 427,211.15 × 268,449.05
  4. Step 4: Simplify right side
    285,217.49x = 114,684,427,092.69
  5. Step 5: Solve for x
    x = 114,684,427,092.69/285,217.49
  6. Step 6: Final answer
    x = 402,094.66

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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.