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Finding the Fourth Proportional to 357.59, 534.91 and 325.55

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Solution

The fourth proportional to 357.59, 534.91 and 325.55 is: 486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.59 : 534.91 = 325.55 : x
  2. Step 2: Convert to fraction form
    357.59/534.91 = 325.55/x
  3. Step 3: Cross multiply
    357.59x = 534.91 × 325.55
  4. Step 4: Simplify right side
    357.59x = 174,139.95
  5. Step 5: Solve for x
    x = 174,139.95/357.59
  6. Step 6: Final answer
    x = 486.98

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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.