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Finding the Fourth Proportional to 431.93, 596.08 and 235.45

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Solution

The fourth proportional to 431.93, 596.08 and 235.45 is: 324.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    431.93 : 596.08 = 235.45 : x
  2. Step 2: Convert to fraction form
    431.93/596.08 = 235.45/x
  3. Step 3: Cross multiply
    431.93x = 596.08 × 235.45
  4. Step 4: Simplify right side
    431.93x = 140,348.08
  5. Step 5: Solve for x
    x = 140,348.08/431.93
  6. Step 6: Final answer
    x = 324.93

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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.