Home / 268,440.71-402,640.11-156,049.25

Finding the Fourth Proportional to 268,440.71, 402,640.11 and 156,049.25

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Solution

The fourth proportional to 268,440.71, 402,640.11 and 156,049.25 is: 234,061.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,440.71 : 402,640.11 = 156,049.25 : x
  2. Step 2: Convert to fraction form
    268,440.71/402,640.11 = 156,049.25/x
  3. Step 3: Cross multiply
    268,440.71x = 402,640.11 × 156,049.25
  4. Step 4: Simplify right side
    268,440.71x = 62,831,685,172.22
  5. Step 5: Solve for x
    x = 62,831,685,172.22/268,440.71
  6. Step 6: Final answer
    x = 234,061.69

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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.