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Finding the Fourth Proportional to 400.34, 552.54 and 260.88

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Solution

The fourth proportional to 400.34, 552.54 and 260.88 is: 360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.34 : 552.54 = 260.88 : x
  2. Step 2: Convert to fraction form
    400.34/552.54 = 260.88/x
  3. Step 3: Cross multiply
    400.34x = 552.54 × 260.88
  4. Step 4: Simplify right side
    400.34x = 144,146.64
  5. Step 5: Solve for x
    x = 144,146.64/400.34
  6. Step 6: Final answer
    x = 360.06

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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.