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Finding the Fourth Proportional to 372.90, 560.70 and 364.80

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Solution

The fourth proportional to 372.90, 560.70 and 364.80 is: 548.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.90 : 560.70 = 364.80 : x
  2. Step 2: Convert to fraction form
    372.90/560.70 = 364.80/x
  3. Step 3: Cross multiply
    372.90x = 560.70 × 364.80
  4. Step 4: Simplify right side
    372.90x = 204,543.36
  5. Step 5: Solve for x
    x = 204,543.36/372.90
  6. Step 6: Final answer
    x = 548.52

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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.