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Finding the Fourth Proportional to 372.04, 557.94 and 155.57

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Solution

The fourth proportional to 372.04, 557.94 and 155.57 is: 233.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.04 : 557.94 = 155.57 : x
  2. Step 2: Convert to fraction form
    372.04/557.94 = 155.57/x
  3. Step 3: Cross multiply
    372.04x = 557.94 × 155.57
  4. Step 4: Simplify right side
    372.04x = 86,795.94
  5. Step 5: Solve for x
    x = 86,795.94/372.04
  6. Step 6: Final answer
    x = 233.30

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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.