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Finding the Fourth Proportional to 246.99, 370.55 and 155.57

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Solution

The fourth proportional to 246.99, 370.55 and 155.57 is: 233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.99 : 370.55 = 155.57 : x
  2. Step 2: Convert to fraction form
    246.99/370.55 = 155.57/x
  3. Step 3: Cross multiply
    246.99x = 370.55 × 155.57
  4. Step 4: Simplify right side
    246.99x = 57,647.78
  5. Step 5: Solve for x
    x = 57,647.78/246.99
  6. Step 6: Final answer
    x = 233.40

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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.