Home / 279,768.12-419,276.88-153,218.04

Finding the Fourth Proportional to 279,768.12, 419,276.88 and 153,218.04

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Solution

The fourth proportional to 279,768.12, 419,276.88 and 153,218.04 is: 229,621.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,768.12 : 419,276.88 = 153,218.04 : x
  2. Step 2: Convert to fraction form
    279,768.12/419,276.88 = 153,218.04/x
  3. Step 3: Cross multiply
    279,768.12x = 419,276.88 × 153,218.04
  4. Step 4: Simplify right side
    279,768.12x = 64,240,781,770.92
  5. Step 5: Solve for x
    x = 64,240,781,770.92/279,768.12
  6. Step 6: Final answer
    x = 229,621.52

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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.