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Finding the Fourth Proportional to 324,612.12, 447,974.64 and 181,378.20

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Solution

The fourth proportional to 324,612.12, 447,974.64 and 181,378.20 is: 250,307.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,612.12 : 447,974.64 = 181,378.20 : x
  2. Step 2: Convert to fraction form
    324,612.12/447,974.64 = 181,378.20/x
  3. Step 3: Cross multiply
    324,612.12x = 447,974.64 × 181,378.20
  4. Step 4: Simplify right side
    324,612.12x = 81,252,833,848.85
  5. Step 5: Solve for x
    x = 81,252,833,848.85/324,612.12
  6. Step 6: Final answer
    x = 250,307.46

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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.