Home / 387,140.96-580,485.36-150,206.72

Finding the Fourth Proportional to 387,140.96, 580,485.36 and 150,206.72

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Solution

The fourth proportional to 387,140.96, 580,485.36 and 150,206.72 is: 225,222.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,140.96 : 580,485.36 = 150,206.72 : x
  2. Step 2: Convert to fraction form
    387,140.96/580,485.36 = 150,206.72/x
  3. Step 3: Cross multiply
    387,140.96x = 580,485.36 × 150,206.72
  4. Step 4: Simplify right side
    387,140.96x = 87,192,801,933.62
  5. Step 5: Solve for x
    x = 87,192,801,933.62/387,140.96
  6. Step 6: Final answer
    x = 225,222.36

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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.