Home / 387,261.72-580,051.37-187,162.45

Finding the Fourth Proportional to 387,261.72, 580,051.37 and 187,162.45

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Solution

The fourth proportional to 387,261.72, 580,051.37 and 187,162.45 is: 280,337.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,261.72 : 580,051.37 = 187,162.45 : x
  2. Step 2: Convert to fraction form
    387,261.72/580,051.37 = 187,162.45/x
  3. Step 3: Cross multiply
    387,261.72x = 580,051.37 × 187,162.45
  4. Step 4: Simplify right side
    387,261.72x = 108,563,836,517.28
  5. Step 5: Solve for x
    x = 108,563,836,517.28/387,261.72
  6. Step 6: Final answer
    x = 280,337.13

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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.