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Finding the Fourth Proportional to 296.18, 443.60 and 290.53

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Solution

The fourth proportional to 296.18, 443.60 and 290.53 is: 435.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.18 : 443.60 = 290.53 : x
  2. Step 2: Convert to fraction form
    296.18/443.60 = 290.53/x
  3. Step 3: Cross multiply
    296.18x = 443.60 × 290.53
  4. Step 4: Simplify right side
    296.18x = 128,879.11
  5. Step 5: Solve for x
    x = 128,879.11/296.18
  6. Step 6: Final answer
    x = 435.14

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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.