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Finding the Fourth Proportional to 373.06, 556.07 and 343.90

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Solution

The fourth proportional to 373.06, 556.07 and 343.90 is: 512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.06 : 556.07 = 343.90 : x
  2. Step 2: Convert to fraction form
    373.06/556.07 = 343.90/x
  3. Step 3: Cross multiply
    373.06x = 556.07 × 343.90
  4. Step 4: Simplify right side
    373.06x = 191,232.47
  5. Step 5: Solve for x
    x = 191,232.47/373.06
  6. Step 6: Final answer
    x = 512.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.