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Finding the Fourth Proportional to 466.80, 700.34 and 285.36

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Solution

The fourth proportional to 466.80, 700.34 and 285.36 is: 428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.80 : 700.34 = 285.36 : x
  2. Step 2: Convert to fraction form
    466.80/700.34 = 285.36/x
  3. Step 3: Cross multiply
    466.80x = 700.34 × 285.36
  4. Step 4: Simplify right side
    466.80x = 199,849.02
  5. Step 5: Solve for x
    x = 199,849.02/466.80
  6. Step 6: Final answer
    x = 428.13

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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.