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Finding the Fourth Proportional to 324,034.80, 447,048.72 and 203,181.12

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Solution

The fourth proportional to 324,034.80, 447,048.72 and 203,181.12 is: 280,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,034.80 : 447,048.72 = 203,181.12 : x
  2. Step 2: Convert to fraction form
    324,034.80/447,048.72 = 203,181.12/x
  3. Step 3: Cross multiply
    324,034.80x = 447,048.72 × 203,181.12
  4. Step 4: Simplify right side
    324,034.80x = 90,831,859,624.17
  5. Step 5: Solve for x
    x = 90,831,859,624.17/324,034.80
  6. Step 6: Final answer
    x = 280,315.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.