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Finding the Fourth Proportional to 265.79, 400.37 and 245.74

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Solution

The fourth proportional to 265.79, 400.37 and 245.74 is: 370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.79 : 400.37 = 245.74 : x
  2. Step 2: Convert to fraction form
    265.79/400.37 = 245.74/x
  3. Step 3: Cross multiply
    265.79x = 400.37 × 245.74
  4. Step 4: Simplify right side
    265.79x = 98,386.92
  5. Step 5: Solve for x
    x = 98,386.92/265.79
  6. Step 6: Final answer
    x = 370.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.