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Finding the Fourth Proportional to 247,781.45, 371,696.67 and 79,259.46

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Solution

The fourth proportional to 247,781.45, 371,696.67 and 79,259.46 is: 118,897.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,781.45 : 371,696.67 = 79,259.46 : x
  2. Step 2: Convert to fraction form
    247,781.45/371,696.67 = 79,259.46/x
  3. Step 3: Cross multiply
    247,781.45x = 371,696.67 × 79,259.46
  4. Step 4: Simplify right side
    247,781.45x = 29,460,477,348.00
  5. Step 5: Solve for x
    x = 29,460,477,348.00/247,781.45
  6. Step 6: Final answer
    x = 118,897.03

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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.