Home / 387,189.96-580,561.50-150,255.72

Finding the Fourth Proportional to 387,189.96, 580,561.50 and 150,255.72

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Solution

The fourth proportional to 387,189.96, 580,561.50 and 150,255.72 is: 225,296.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,189.96 : 580,561.50 = 150,255.72 : x
  2. Step 2: Convert to fraction form
    387,189.96/580,561.50 = 150,255.72/x
  3. Step 3: Cross multiply
    387,189.96x = 580,561.50 × 150,255.72
  4. Step 4: Simplify right side
    387,189.96x = 87,232,686,186.78
  5. Step 5: Solve for x
    x = 87,232,686,186.78/387,189.96
  6. Step 6: Final answer
    x = 225,296.87

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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.