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Finding the Fourth Proportional to 603.07, 903.93 and 372.13

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Solution

The fourth proportional to 603.07, 903.93 and 372.13 is: 557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.07 : 903.93 = 372.13 : x
  2. Step 2: Convert to fraction form
    603.07/903.93 = 372.13/x
  3. Step 3: Cross multiply
    603.07x = 903.93 × 372.13
  4. Step 4: Simplify right side
    603.07x = 336,379.47
  5. Step 5: Solve for x
    x = 336,379.47/603.07
  6. Step 6: Final answer
    x = 557.78

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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.