Home / 258,999.43-388,397.04-125,840.29

Finding the Fourth Proportional to 258,999.43, 388,397.04 and 125,840.29

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Solution

The fourth proportional to 258,999.43, 388,397.04 and 125,840.29 is: 188,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,999.43 : 388,397.04 = 125,840.29 : x
  2. Step 2: Convert to fraction form
    258,999.43/388,397.04 = 125,840.29/x
  3. Step 3: Cross multiply
    258,999.43x = 388,397.04 × 125,840.29
  4. Step 4: Simplify right side
    258,999.43x = 48,875,996,148.74
  5. Step 5: Solve for x
    x = 48,875,996,148.74/258,999.43
  6. Step 6: Final answer
    x = 188,710.83

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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.