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Finding the Fourth Proportional to 258,875, 387,751.62 and 125,476.19

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Solution

The fourth proportional to 258,875, 387,751.62 and 125,476.19 is: 187,942.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,875 : 387,751.62 = 125,476.19 : x
  2. Step 2: Convert to fraction form
    258,875/387,751.62 = 125,476.19/x
  3. Step 3: Cross multiply
    258,875x = 387,751.62 × 125,476.19
  4. Step 4: Simplify right side
    258,875x = 48,653,595,943.93
  5. Step 5: Solve for x
    x = 48,653,595,943.93/258,875
  6. Step 6: Final answer
    x = 187,942.43

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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.