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Finding the Fourth Proportional to 387,299.75, 580,726.13 and 150,365.63

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Solution

The fourth proportional to 387,299.75, 580,726.13 and 150,365.63 is: 225,461.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,299.75 : 580,726.13 = 150,365.63 : x
  2. Step 2: Convert to fraction form
    387,299.75/580,726.13 = 150,365.63/x
  3. Step 3: Cross multiply
    387,299.75x = 580,726.13 × 150,365.63
  4. Step 4: Simplify right side
    387,299.75x = 87,321,251,094.90
  5. Step 5: Solve for x
    x = 87,321,251,094.90/387,299.75
  6. Step 6: Final answer
    x = 225,461.68

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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.