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Finding the Fourth Proportional to 354,127.80, 488,696.40 and 192,982.80

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Solution

The fourth proportional to 354,127.80, 488,696.40 and 192,982.80 is: 266,316.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,127.80 : 488,696.40 = 192,982.80 : x
  2. Step 2: Convert to fraction form
    354,127.80/488,696.40 = 192,982.80/x
  3. Step 3: Cross multiply
    354,127.80x = 488,696.40 × 192,982.80
  4. Step 4: Simplify right side
    354,127.80x = 94,309,999,621.92
  5. Step 5: Solve for x
    x = 94,309,999,621.92/354,127.80
  6. Step 6: Final answer
    x = 266,316.28

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1.5x scale

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.