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Finding the Fourth Proportional to 304,770.75, 457,119.72 and 80,148.69

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Solution

The fourth proportional to 304,770.75, 457,119.72 and 80,148.69 is: 120,213.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,770.75 : 457,119.72 = 80,148.69 : x
  2. Step 2: Convert to fraction form
    304,770.75/457,119.72 = 80,148.69/x
  3. Step 3: Cross multiply
    304,770.75x = 457,119.72 × 80,148.69
  4. Step 4: Simplify right side
    304,770.75x = 36,637,546,731.17
  5. Step 5: Solve for x
    x = 36,637,546,731.17/304,770.75
  6. Step 6: Final answer
    x = 120,213.46

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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.