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Finding the Fourth Proportional to 370.63, 554.91 and 240.78

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Solution

The fourth proportional to 370.63, 554.91 and 240.78 is: 360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.63 : 554.91 = 240.78 : x
  2. Step 2: Convert to fraction form
    370.63/554.91 = 240.78/x
  3. Step 3: Cross multiply
    370.63x = 554.91 × 240.78
  4. Step 4: Simplify right side
    370.63x = 133,611.23
  5. Step 5: Solve for x
    x = 133,611.23/370.63
  6. Step 6: Final answer
    x = 360.50

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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.