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Finding the Fourth Proportional to 253,449.84, 380,246.58 and 126,937.29

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Solution

The fourth proportional to 253,449.84, 380,246.58 and 126,937.29 is: 190,441.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,449.84 : 380,246.58 = 126,937.29 : x
  2. Step 2: Convert to fraction form
    253,449.84/380,246.58 = 126,937.29/x
  3. Step 3: Cross multiply
    253,449.84x = 380,246.58 × 126,937.29
  4. Step 4: Simplify right side
    253,449.84x = 48,267,470,396.97
  5. Step 5: Solve for x
    x = 48,267,470,396.97/253,449.84
  6. Step 6: Final answer
    x = 190,441.91

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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.