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Finding the Fourth Proportional to 466.88, 701.68 and 390.32

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Solution

The fourth proportional to 466.88, 701.68 and 390.32 is: 586.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.88 : 701.68 = 390.32 : x
  2. Step 2: Convert to fraction form
    466.88/701.68 = 390.32/x
  3. Step 3: Cross multiply
    466.88x = 701.68 × 390.32
  4. Step 4: Simplify right side
    466.88x = 273,879.74
  5. Step 5: Solve for x
    x = 273,879.74/466.88
  6. Step 6: Final answer
    x = 586.62

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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.