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Finding the Fourth Proportional to 437.40, 604.49 and 358.59

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Solution

The fourth proportional to 437.40, 604.49 and 358.59 is: 495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.40 : 604.49 = 358.59 : x
  2. Step 2: Convert to fraction form
    437.40/604.49 = 358.59/x
  3. Step 3: Cross multiply
    437.40x = 604.49 × 358.59
  4. Step 4: Simplify right side
    437.40x = 216,764.54
  5. Step 5: Solve for x
    x = 216,764.54/437.40
  6. Step 6: Final answer
    x = 495.58

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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.