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Finding the Fourth Proportional to 437.61, 603.71 and 271.76

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Solution

The fourth proportional to 437.61, 603.71 and 271.76 is: 374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.61 : 603.71 = 271.76 : x
  2. Step 2: Convert to fraction form
    437.61/603.71 = 271.76/x
  3. Step 3: Cross multiply
    437.61x = 603.71 × 271.76
  4. Step 4: Simplify right side
    437.61x = 164,064.23
  5. Step 5: Solve for x
    x = 164,064.23/437.61
  6. Step 6: Final answer
    x = 374.91

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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.