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Finding the Fourth Proportional to 432.40, 596.58 and 245.88

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Solution

The fourth proportional to 432.40, 596.58 and 245.88 is: 339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.40 : 596.58 = 245.88 : x
  2. Step 2: Convert to fraction form
    432.40/596.58 = 245.88/x
  3. Step 3: Cross multiply
    432.40x = 596.58 × 245.88
  4. Step 4: Simplify right side
    432.40x = 146,687.09
  5. Step 5: Solve for x
    x = 146,687.09/432.40
  6. Step 6: Final answer
    x = 339.24

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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.