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Finding the Fourth Proportional to 370.40, 555.12 and 242.24

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Solution

The fourth proportional to 370.40, 555.12 and 242.24 is: 363.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.40 : 555.12 = 242.24 : x
  2. Step 2: Convert to fraction form
    370.40/555.12 = 242.24/x
  3. Step 3: Cross multiply
    370.40x = 555.12 × 242.24
  4. Step 4: Simplify right side
    370.40x = 134,472.27
  5. Step 5: Solve for x
    x = 134,472.27/370.40
  6. Step 6: Final answer
    x = 363.05

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