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Finding the Fourth Proportional to 385.03, 574.77 and 357.69

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Solution

The fourth proportional to 385.03, 574.77 and 357.69 is: 533.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.03 : 574.77 = 357.69 : x
  2. Step 2: Convert to fraction form
    385.03/574.77 = 357.69/x
  3. Step 3: Cross multiply
    385.03x = 574.77 × 357.69
  4. Step 4: Simplify right side
    385.03x = 205,589.48
  5. Step 5: Solve for x
    x = 205,589.48/385.03
  6. Step 6: Final answer
    x = 533.96

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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.