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Finding the Fourth Proportional to 246.84, 370.53 and 138.84

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Solution

The fourth proportional to 246.84, 370.53 and 138.84 is: 208.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.84 : 370.53 = 138.84 : x
  2. Step 2: Convert to fraction form
    246.84/370.53 = 138.84/x
  3. Step 3: Cross multiply
    246.84x = 370.53 × 138.84
  4. Step 4: Simplify right side
    246.84x = 51,444.39
  5. Step 5: Solve for x
    x = 51,444.39/246.84
  6. Step 6: Final answer
    x = 208.41

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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.