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Finding the Fourth Proportional to 343.41, 515.06 and 124.02

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Solution

The fourth proportional to 343.41, 515.06 and 124.02 is: 186.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.41 : 515.06 = 124.02 : x
  2. Step 2: Convert to fraction form
    343.41/515.06 = 124.02/x
  3. Step 3: Cross multiply
    343.41x = 515.06 × 124.02
  4. Step 4: Simplify right side
    343.41x = 63,877.12
  5. Step 5: Solve for x
    x = 63,877.12/343.41
  6. Step 6: Final answer
    x = 186.01

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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.