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Finding the Fourth Proportional to 351.77, 524.55 and 348.70

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Solution

The fourth proportional to 351.77, 524.55 and 348.70 is: 519.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.77 : 524.55 = 348.70 : x
  2. Step 2: Convert to fraction form
    351.77/524.55 = 348.70/x
  3. Step 3: Cross multiply
    351.77x = 524.55 × 348.70
  4. Step 4: Simplify right side
    351.77x = 182,908.84
  5. Step 5: Solve for x
    x = 182,908.84/351.77
  6. Step 6: Final answer
    x = 519.97

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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.