Home / 387,171.90-580,767.57-187,455.06

Finding the Fourth Proportional to 387,171.90, 580,767.57 and 187,455.06

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Solution

The fourth proportional to 387,171.90, 580,767.57 and 187,455.06 is: 281,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,171.90 : 580,767.57 = 187,455.06 : x
  2. Step 2: Convert to fraction form
    387,171.90/580,767.57 = 187,455.06/x
  3. Step 3: Cross multiply
    387,171.90x = 580,767.57 × 187,455.06
  4. Step 4: Simplify right side
    387,171.90x = 108,867,819,680.40
  5. Step 5: Solve for x
    x = 108,867,819,680.40/387,171.90
  6. Step 6: Final answer
    x = 281,187.30

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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.