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Finding the Fourth Proportional to 976.82, 1,465.27 and 246.40

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Solution

The fourth proportional to 976.82, 1,465.27 and 246.40 is: 369.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.82 : 1,465.27 = 246.40 : x
  2. Step 2: Convert to fraction form
    976.82/1,465.27 = 246.40/x
  3. Step 3: Cross multiply
    976.82x = 1,465.27 × 246.40
  4. Step 4: Simplify right side
    976.82x = 361,038.25
  5. Step 5: Solve for x
    x = 361,038.25/976.82
  6. Step 6: Final answer
    x = 369.61

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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.