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Finding the Fourth Proportional to 298.56, 410.76 and 265.89

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Solution

The fourth proportional to 298.56, 410.76 and 265.89 is: 365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.56 : 410.76 = 265.89 : x
  2. Step 2: Convert to fraction form
    298.56/410.76 = 265.89/x
  3. Step 3: Cross multiply
    298.56x = 410.76 × 265.89
  4. Step 4: Simplify right side
    298.56x = 109,216.98
  5. Step 5: Solve for x
    x = 109,216.98/298.56
  6. Step 6: Final answer
    x = 365.81

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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.