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Finding the Fourth Proportional to 304.80, 454.18 and 293.20

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Solution

The fourth proportional to 304.80, 454.18 and 293.20 is: 436.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.80 : 454.18 = 293.20 : x
  2. Step 2: Convert to fraction form
    304.80/454.18 = 293.20/x
  3. Step 3: Cross multiply
    304.80x = 454.18 × 293.20
  4. Step 4: Simplify right side
    304.80x = 133,165.58
  5. Step 5: Solve for x
    x = 133,165.58/304.80
  6. Step 6: Final answer
    x = 436.89

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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.