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Finding the Fourth Proportional to 369.84, 510.35 and 271.65

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Solution

The fourth proportional to 369.84, 510.35 and 271.65 is: 374.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.84 : 510.35 = 271.65 : x
  2. Step 2: Convert to fraction form
    369.84/510.35 = 271.65/x
  3. Step 3: Cross multiply
    369.84x = 510.35 × 271.65
  4. Step 4: Simplify right side
    369.84x = 138,635.22
  5. Step 5: Solve for x
    x = 138,635.22/369.84
  6. Step 6: Final answer
    x = 374.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.