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Finding the Fourth Proportional to 324,957.61, 487,257.81 and 100,256.73

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Solution

The fourth proportional to 324,957.61, 487,257.81 and 100,256.73 is: 150,329.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,957.61 : 487,257.81 = 100,256.73 : x
  2. Step 2: Convert to fraction form
    324,957.61/487,257.81 = 100,256.73/x
  3. Step 3: Cross multiply
    324,957.61x = 487,257.81 × 100,256.73
  4. Step 4: Simplify right side
    324,957.61x = 48,850,874,697.56
  5. Step 5: Solve for x
    x = 48,850,874,697.56/324,957.61
  6. Step 6: Final answer
    x = 150,329.99

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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.