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Finding the Fourth Proportional to 247,734, 371,619.54 and 70,255.31

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Solution

The fourth proportional to 247,734, 371,619.54 and 70,255.31 is: 105,388.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,734 : 371,619.54 = 70,255.31 : x
  2. Step 2: Convert to fraction form
    247,734/371,619.54 = 70,255.31/x
  3. Step 3: Cross multiply
    247,734x = 371,619.54 × 70,255.31
  4. Step 4: Simplify right side
    247,734x = 26,108,244,126.66
  5. Step 5: Solve for x
    x = 26,108,244,126.66/247,734
  6. Step 6: Final answer
    x = 105,388.22

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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.