Home / 387,256.72-580,043.89-187,157.46

Finding the Fourth Proportional to 387,256.72, 580,043.89 and 187,157.46

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Solution

The fourth proportional to 387,256.72, 580,043.89 and 187,157.46 is: 280,329.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,256.72 : 580,043.89 = 187,157.46 : x
  2. Step 2: Convert to fraction form
    387,256.72/580,043.89 = 187,157.46/x
  3. Step 3: Cross multiply
    387,256.72x = 580,043.89 × 187,157.46
  4. Step 4: Simplify right side
    387,256.72x = 108,559,540,865.90
  5. Step 5: Solve for x
    x = 108,559,540,865.90/387,256.72
  6. Step 6: Final answer
    x = 280,329.65

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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.