Home / 387,263.22-580,479.52-187,308.54

Finding the Fourth Proportional to 387,263.22, 580,479.52 and 187,308.54

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Solution

The fourth proportional to 387,263.22, 580,479.52 and 187,308.54 is: 280,761.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,263.22 : 580,479.52 = 187,308.54 : x
  2. Step 2: Convert to fraction form
    387,263.22/580,479.52 = 187,308.54/x
  3. Step 3: Cross multiply
    387,263.22x = 580,479.52 × 187,308.54
  4. Step 4: Simplify right side
    387,263.22x = 108,728,771,391.10
  5. Step 5: Solve for x
    x = 108,728,771,391.10/387,263.22
  6. Step 6: Final answer
    x = 280,761.94

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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.