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Finding the Fourth Proportional to 603.16, 905.15 and 237.90

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Solution

The fourth proportional to 603.16, 905.15 and 237.90 is: 357.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.16 : 905.15 = 237.90 : x
  2. Step 2: Convert to fraction form
    603.16/905.15 = 237.90/x
  3. Step 3: Cross multiply
    603.16x = 905.15 × 237.90
  4. Step 4: Simplify right side
    603.16x = 215,335.19
  5. Step 5: Solve for x
    x = 215,335.19/603.16
  6. Step 6: Final answer
    x = 357.01

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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.