Home / 258,460.47-387,691.05-125,360.34

Finding the Fourth Proportional to 258,460.47, 387,691.05 and 125,360.34

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Solution

The fourth proportional to 258,460.47, 387,691.05 and 125,360.34 is: 188,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,460.47 : 387,691.05 = 125,360.34 : x
  2. Step 2: Convert to fraction form
    258,460.47/387,691.05 = 125,360.34/x
  3. Step 3: Cross multiply
    258,460.47x = 387,691.05 × 125,360.34
  4. Step 4: Simplify right side
    258,460.47x = 48,601,081,842.96
  5. Step 5: Solve for x
    x = 48,601,081,842.96/258,460.47
  6. Step 6: Final answer
    x = 188,040.68

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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.