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Finding the Fourth Proportional to 406.00, 560.32 and 240.31

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Solution

The fourth proportional to 406.00, 560.32 and 240.31 is: 331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.00 : 560.32 = 240.31 : x
  2. Step 2: Convert to fraction form
    406.00/560.32 = 240.31/x
  3. Step 3: Cross multiply
    406.00x = 560.32 × 240.31
  4. Step 4: Simplify right side
    406.00x = 134,649.02
  5. Step 5: Solve for x
    x = 134,649.02/406.00
  6. Step 6: Final answer
    x = 331.64

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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.