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Finding the Fourth Proportional to 437.05, 602.81 and 279.52

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Solution

The fourth proportional to 437.05, 602.81 and 279.52 is: 385.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.05 : 602.81 = 279.52 : x
  2. Step 2: Convert to fraction form
    437.05/602.81 = 279.52/x
  3. Step 3: Cross multiply
    437.05x = 602.81 × 279.52
  4. Step 4: Simplify right side
    437.05x = 168,495.59
  5. Step 5: Solve for x
    x = 168,495.59/437.05
  6. Step 6: Final answer
    x = 385.53

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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.