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Finding the Fourth Proportional to 199,393.80, 298,388.10 and 124,549.19

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Solution

The fourth proportional to 199,393.80, 298,388.10 and 124,549.19 is: 186,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,393.80 : 298,388.10 = 124,549.19 : x
  2. Step 2: Convert to fraction form
    199,393.80/298,388.10 = 124,549.19/x
  3. Step 3: Cross multiply
    199,393.80x = 298,388.10 × 124,549.19
  4. Step 4: Simplify right side
    199,393.80x = 37,163,996,160.64
  5. Step 5: Solve for x
    x = 37,163,996,160.64/199,393.80
  6. Step 6: Final answer
    x = 186,384.91

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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.