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Finding the Fourth Proportional to 392.32, 590.60 and 352.63

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Solution

The fourth proportional to 392.32, 590.60 and 352.63 is: 530.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.32 : 590.60 = 352.63 : x
  2. Step 2: Convert to fraction form
    392.32/590.60 = 352.63/x
  3. Step 3: Cross multiply
    392.32x = 590.60 × 352.63
  4. Step 4: Simplify right side
    392.32x = 208,260.33
  5. Step 5: Solve for x
    x = 208,260.33/392.32
  6. Step 6: Final answer
    x = 530.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.