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Finding the Fourth Proportional to 265.02, 395.45 and 235.65

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Solution

The fourth proportional to 265.02, 395.45 and 235.65 is: 351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.02 : 395.45 = 235.65 : x
  2. Step 2: Convert to fraction form
    265.02/395.45 = 235.65/x
  3. Step 3: Cross multiply
    265.02x = 395.45 × 235.65
  4. Step 4: Simplify right side
    265.02x = 93,186.61
  5. Step 5: Solve for x
    x = 93,186.61/265.02
  6. Step 6: Final answer
    x = 351.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.