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Finding the Fourth Proportional to 466.33, 695.68 and 389.79

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Solution

The fourth proportional to 466.33, 695.68 and 389.79 is: 581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.33 : 695.68 = 389.79 : x
  2. Step 2: Convert to fraction form
    466.33/695.68 = 389.79/x
  3. Step 3: Cross multiply
    466.33x = 695.68 × 389.79
  4. Step 4: Simplify right side
    466.33x = 271,169.11
  5. Step 5: Solve for x
    x = 271,169.11/466.33
  6. Step 6: Final answer
    x = 581.50

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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.