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Finding the Fourth Proportional to 457.98, 631.65 and 334.05

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Solution

The fourth proportional to 457.98, 631.65 and 334.05 is: 460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.98 : 631.65 = 334.05 : x
  2. Step 2: Convert to fraction form
    457.98/631.65 = 334.05/x
  3. Step 3: Cross multiply
    457.98x = 631.65 × 334.05
  4. Step 4: Simplify right side
    457.98x = 211,002.68
  5. Step 5: Solve for x
    x = 211,002.68/457.98
  6. Step 6: Final answer
    x = 460.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.