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Finding the Fourth Proportional to 324,008.70, 486,013.05 and 102,392.70

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Solution

The fourth proportional to 324,008.70, 486,013.05 and 102,392.70 is: 153,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,008.70 : 486,013.05 = 102,392.70 : x
  2. Step 2: Convert to fraction form
    324,008.70/486,013.05 = 102,392.70/x
  3. Step 3: Cross multiply
    324,008.70x = 486,013.05 × 102,392.70
  4. Step 4: Simplify right side
    324,008.70x = 49,764,188,424.74
  5. Step 5: Solve for x
    x = 49,764,188,424.74/324,008.70
  6. Step 6: Final answer
    x = 153,589.05

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Similar ratio
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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.