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Finding the Fourth Proportional to 324,688.80, 447,780.42 and 203,841.35

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Solution

The fourth proportional to 324,688.80, 447,780.42 and 203,841.35 is: 281,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,688.80 : 447,780.42 = 203,841.35 : x
  2. Step 2: Convert to fraction form
    324,688.80/447,780.42 = 203,841.35/x
  3. Step 3: Cross multiply
    324,688.80x = 447,780.42 × 203,841.35
  4. Step 4: Simplify right side
    324,688.80x = 91,276,163,077.46
  5. Step 5: Solve for x
    x = 91,276,163,077.46/324,688.80
  6. Step 6: Final answer
    x = 281,118.91

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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.