Home / 268,440.50-402,651.53-68,762.62

Finding the Fourth Proportional to 268,440.50, 402,651.53 and 68,762.62

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Solution

The fourth proportional to 268,440.50, 402,651.53 and 68,762.62 is: 103,141.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,440.50 : 402,651.53 = 68,762.62 : x
  2. Step 2: Convert to fraction form
    268,440.50/402,651.53 = 68,762.62/x
  3. Step 3: Cross multiply
    268,440.50x = 402,651.53 × 68,762.62
  4. Step 4: Simplify right side
    268,440.50x = 27,687,374,149.81
  5. Step 5: Solve for x
    x = 27,687,374,149.81/268,440.50
  6. Step 6: Final answer
    x = 103,141.57

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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.