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Finding the Fourth Proportional to 347.50, 519.69 and 265.26

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Solution

The fourth proportional to 347.50, 519.69 and 265.26 is: 396.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.50 : 519.69 = 265.26 : x
  2. Step 2: Convert to fraction form
    347.50/519.69 = 265.26/x
  3. Step 3: Cross multiply
    347.50x = 519.69 × 265.26
  4. Step 4: Simplify right side
    347.50x = 137,851.64
  5. Step 5: Solve for x
    x = 137,851.64/347.50
  6. Step 6: Final answer
    x = 396.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.