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Finding the Fourth Proportional to 824.74, 1,237.11 and 277.31

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Solution

The fourth proportional to 824.74, 1,237.11 and 277.31 is: 415.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    824.74 : 1,237.11 = 277.31 : x
  2. Step 2: Convert to fraction form
    824.74/1,237.11 = 277.31/x
  3. Step 3: Cross multiply
    824.74x = 1,237.11 × 277.31
  4. Step 4: Simplify right side
    824.74x = 343,063.60
  5. Step 5: Solve for x
    x = 343,063.60/824.74
  6. Step 6: Final answer
    x = 415.96

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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.