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Finding the Fourth Proportional to 479.07, 717.91 and 235.32

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Solution

The fourth proportional to 479.07, 717.91 and 235.32 is: 352.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.07 : 717.91 = 235.32 : x
  2. Step 2: Convert to fraction form
    479.07/717.91 = 235.32/x
  3. Step 3: Cross multiply
    479.07x = 717.91 × 235.32
  4. Step 4: Simplify right side
    479.07x = 168,938.58
  5. Step 5: Solve for x
    x = 168,938.58/479.07
  6. Step 6: Final answer
    x = 352.64

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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.