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Finding the Fourth Proportional to 369.84, 557.24 and 351.66

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Solution

The fourth proportional to 369.84, 557.24 and 351.66 is: 529.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.84 : 557.24 = 351.66 : x
  2. Step 2: Convert to fraction form
    369.84/557.24 = 351.66/x
  3. Step 3: Cross multiply
    369.84x = 557.24 × 351.66
  4. Step 4: Simplify right side
    369.84x = 195,959.02
  5. Step 5: Solve for x
    x = 195,959.02/369.84
  6. Step 6: Final answer
    x = 529.85

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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.