Home / 387,679.05-581,280.43-150,745.55

Finding the Fourth Proportional to 387,679.05, 581,280.43 and 150,745.55

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Solution

The fourth proportional to 387,679.05, 581,280.43 and 150,745.55 is: 226,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,679.05 : 581,280.43 = 150,745.55 : x
  2. Step 2: Convert to fraction form
    387,679.05/581,280.43 = 150,745.55/x
  3. Step 3: Cross multiply
    387,679.05x = 581,280.43 × 150,745.55
  4. Step 4: Simplify right side
    387,679.05x = 87,625,438,124.59
  5. Step 5: Solve for x
    x = 87,625,438,124.59/387,679.05
  6. Step 6: Final answer
    x = 226,025.72

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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.