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Finding the Fourth Proportional to 373.74, 557.79 and 364.02

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Solution

The fourth proportional to 373.74, 557.79 and 364.02 is: 543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.74 : 557.79 = 364.02 : x
  2. Step 2: Convert to fraction form
    373.74/557.79 = 364.02/x
  3. Step 3: Cross multiply
    373.74x = 557.79 × 364.02
  4. Step 4: Simplify right side
    373.74x = 203,046.72
  5. Step 5: Solve for x
    x = 203,046.72/373.74
  6. Step 6: Final answer
    x = 543.28

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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.