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Finding the Fourth Proportional to 430.30, 593.58 and 255.52

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Solution

The fourth proportional to 430.30, 593.58 and 255.52 is: 352.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    430.30 : 593.58 = 255.52 : x
  2. Step 2: Convert to fraction form
    430.30/593.58 = 255.52/x
  3. Step 3: Cross multiply
    430.30x = 593.58 × 255.52
  4. Step 4: Simplify right side
    430.30x = 151,671.56
  5. Step 5: Solve for x
    x = 151,671.56/430.30
  6. Step 6: Final answer
    x = 352.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.