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Finding the Fourth Proportional to 466.80, 701.40 and 345.72

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Solution

The fourth proportional to 466.80, 701.40 and 345.72 is: 519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.80 : 701.40 = 345.72 : x
  2. Step 2: Convert to fraction form
    466.80/701.40 = 345.72/x
  3. Step 3: Cross multiply
    466.80x = 701.40 × 345.72
  4. Step 4: Simplify right side
    466.80x = 242,488.01
  5. Step 5: Solve for x
    x = 242,488.01/466.80
  6. Step 6: Final answer
    x = 519.47

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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.