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Finding the Fourth Proportional to 370.16, 554.88 and 153.80

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Solution

The fourth proportional to 370.16, 554.88 and 153.80 is: 230.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.16 : 554.88 = 153.80 : x
  2. Step 2: Convert to fraction form
    370.16/554.88 = 153.80/x
  3. Step 3: Cross multiply
    370.16x = 554.88 × 153.80
  4. Step 4: Simplify right side
    370.16x = 85,340.54
  5. Step 5: Solve for x
    x = 85,340.54/370.16
  6. Step 6: Final answer
    x = 230.55

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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.