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Finding the Fourth Proportional to 373.16, 556.45 and 347.19

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Solution

The fourth proportional to 373.16, 556.45 and 347.19 is: 517.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.16 : 556.45 = 347.19 : x
  2. Step 2: Convert to fraction form
    373.16/556.45 = 347.19/x
  3. Step 3: Cross multiply
    373.16x = 556.45 × 347.19
  4. Step 4: Simplify right side
    373.16x = 193,193.88
  5. Step 5: Solve for x
    x = 193,193.88/373.16
  6. Step 6: Final answer
    x = 517.72

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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.