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Finding the Fourth Proportional to 466.68, 699.66 and 389.46

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Solution

The fourth proportional to 466.68, 699.66 and 389.46 is: 583.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.68 : 699.66 = 389.46 : x
  2. Step 2: Convert to fraction form
    466.68/699.66 = 389.46/x
  3. Step 3: Cross multiply
    466.68x = 699.66 × 389.46
  4. Step 4: Simplify right side
    466.68x = 272,489.58
  5. Step 5: Solve for x
    x = 272,489.58/466.68
  6. Step 6: Final answer
    x = 583.89

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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.