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Finding the Fourth Proportional to 324,000.70, 485,770.65 and 124,243.90

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Solution

The fourth proportional to 324,000.70, 485,770.65 and 124,243.90 is: 186,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,000.70 : 485,770.65 = 124,243.90 : x
  2. Step 2: Convert to fraction form
    324,000.70/485,770.65 = 124,243.90/x
  3. Step 3: Cross multiply
    324,000.70x = 485,770.65 × 124,243.90
  4. Step 4: Simplify right side
    324,000.70x = 60,354,040,061.54
  5. Step 5: Solve for x
    x = 60,354,040,061.54/324,000.70
  6. Step 6: Final answer
    x = 186,277.50

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1.5x scale

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.