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Finding the Fourth Proportional to 369.55, 552.84 and 346.87

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Solution

The fourth proportional to 369.55, 552.84 and 346.87 is: 518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.55 : 552.84 = 346.87 : x
  2. Step 2: Convert to fraction form
    369.55/552.84 = 346.87/x
  3. Step 3: Cross multiply
    369.55x = 552.84 × 346.87
  4. Step 4: Simplify right side
    369.55x = 191,763.61
  5. Step 5: Solve for x
    x = 191,763.61/369.55
  6. Step 6: Final answer
    x = 518.91

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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.