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Finding the Fourth Proportional to 611.30, 917.15 and 246.17

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Solution

The fourth proportional to 611.30, 917.15 and 246.17 is: 369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.30 : 917.15 = 246.17 : x
  2. Step 2: Convert to fraction form
    611.30/917.15 = 246.17/x
  3. Step 3: Cross multiply
    611.30x = 917.15 × 246.17
  4. Step 4: Simplify right side
    611.30x = 225,769.00
  5. Step 5: Solve for x
    x = 225,769.00/611.30
  6. Step 6: Final answer
    x = 369.33

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1.5x scale

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.