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Finding the Fourth Proportional to 303.90, 452.42 and 302.10

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Solution

The fourth proportional to 303.90, 452.42 and 302.10 is: 449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.90 : 452.42 = 302.10 : x
  2. Step 2: Convert to fraction form
    303.90/452.42 = 302.10/x
  3. Step 3: Cross multiply
    303.90x = 452.42 × 302.10
  4. Step 4: Simplify right side
    303.90x = 136,674.57
  5. Step 5: Solve for x
    x = 136,674.57/303.90
  6. Step 6: Final answer
    x = 449.74

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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.