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Finding the Fourth Proportional to 281,909.54, 389,239.33 and 181,482.50

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Solution

The fourth proportional to 281,909.54, 389,239.33 and 181,482.50 is: 250,577.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,909.54 : 389,239.33 = 181,482.50 : x
  2. Step 2: Convert to fraction form
    281,909.54/389,239.33 = 181,482.50/x
  3. Step 3: Cross multiply
    281,909.54x = 389,239.33 × 181,482.50
  4. Step 4: Simplify right side
    281,909.54x = 70,640,126,706.73
  5. Step 5: Solve for x
    x = 70,640,126,706.73/281,909.54
  6. Step 6: Final answer
    x = 250,577.28

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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.