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Finding the Fourth Proportional to 603.87, 906.36 and 373.21

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Solution

The fourth proportional to 603.87, 906.36 and 373.21 is: 560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.87 : 906.36 = 373.21 : x
  2. Step 2: Convert to fraction form
    603.87/906.36 = 373.21/x
  3. Step 3: Cross multiply
    603.87x = 906.36 × 373.21
  4. Step 4: Simplify right side
    603.87x = 338,256.22
  5. Step 5: Solve for x
    x = 338,256.22/603.87
  6. Step 6: Final answer
    x = 560.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.