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Finding the Fourth Proportional to 370.74, 511.95 and 240.06

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Solution

The fourth proportional to 370.74, 511.95 and 240.06 is: 331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.74 : 511.95 = 240.06 : x
  2. Step 2: Convert to fraction form
    370.74/511.95 = 240.06/x
  3. Step 3: Cross multiply
    370.74x = 511.95 × 240.06
  4. Step 4: Simplify right side
    370.74x = 122,898.72
  5. Step 5: Solve for x
    x = 122,898.72/370.74
  6. Step 6: Final answer
    x = 331.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.