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Finding the Fourth Proportional to 529.60, 793.80 and 240.43

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Solution

The fourth proportional to 529.60, 793.80 and 240.43 is: 360.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.60 : 793.80 = 240.43 : x
  2. Step 2: Convert to fraction form
    529.60/793.80 = 240.43/x
  3. Step 3: Cross multiply
    529.60x = 793.80 × 240.43
  4. Step 4: Simplify right side
    529.60x = 190,853.33
  5. Step 5: Solve for x
    x = 190,853.33/529.60
  6. Step 6: Final answer
    x = 360.37

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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.