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Finding the Fourth Proportional to 385.44, 574.84 and 373.60

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Solution

The fourth proportional to 385.44, 574.84 and 373.60 is: 557.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.44 : 574.84 = 373.60 : x
  2. Step 2: Convert to fraction form
    385.44/574.84 = 373.60/x
  3. Step 3: Cross multiply
    385.44x = 574.84 × 373.60
  4. Step 4: Simplify right side
    385.44x = 214,760.22
  5. Step 5: Solve for x
    x = 214,760.22/385.44
  6. Step 6: Final answer
    x = 557.18

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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.