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Finding the Fourth Proportional to 281,989.25, 389,238.23 and 252,095.70

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Solution

The fourth proportional to 281,989.25, 389,238.23 and 252,095.70 is: 347,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,989.25 : 389,238.23 = 252,095.70 : x
  2. Step 2: Convert to fraction form
    281,989.25/389,238.23 = 252,095.70/x
  3. Step 3: Cross multiply
    281,989.25x = 389,238.23 × 252,095.70
  4. Step 4: Simplify right side
    281,989.25x = 98,125,284,058.61
  5. Step 5: Solve for x
    x = 98,125,284,058.61/281,989.25
  6. Step 6: Final answer
    x = 347,975.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.