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Finding the Fourth Proportional to 258,873, 387,748.62 and 125,474.19

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Solution

The fourth proportional to 258,873, 387,748.62 and 125,474.19 is: 187,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,873 : 387,748.62 = 125,474.19 : x
  2. Step 2: Convert to fraction form
    258,873/387,748.62 = 125,474.19/x
  3. Step 3: Cross multiply
    258,873x = 387,748.62 × 125,474.19
  4. Step 4: Simplify right side
    258,873x = 48,652,444,018.12
  5. Step 5: Solve for x
    x = 48,652,444,018.12/258,873
  6. Step 6: Final answer
    x = 187,939.43

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1.5x scale

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.