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Finding the Fourth Proportional to 437.22, 603.90 and 358.74

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Solution

The fourth proportional to 437.22, 603.90 and 358.74 is: 495.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.22 : 603.90 = 358.74 : x
  2. Step 2: Convert to fraction form
    437.22/603.90 = 358.74/x
  3. Step 3: Cross multiply
    437.22x = 603.90 × 358.74
  4. Step 4: Simplify right side
    437.22x = 216,643.09
  5. Step 5: Solve for x
    x = 216,643.09/437.22
  6. Step 6: Final answer
    x = 495.50

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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.