Home / 268,298.06-402,635.70-126,149.85

Finding the Fourth Proportional to 268,298.06, 402,635.70 and 126,149.85

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Solution

The fourth proportional to 268,298.06, 402,635.70 and 126,149.85 is: 189,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,298.06 : 402,635.70 = 126,149.85 : x
  2. Step 2: Convert to fraction form
    268,298.06/402,635.70 = 126,149.85/x
  3. Step 3: Cross multiply
    268,298.06x = 402,635.70 × 126,149.85
  4. Step 4: Simplify right side
    268,298.06x = 50,792,433,159.65
  5. Step 5: Solve for x
    x = 50,792,433,159.65/268,298.06
  6. Step 6: Final answer
    x = 189,313.46

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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.