Home / 217,787.46-326,499.75-189,638.34

Finding the Fourth Proportional to 217,787.46, 326,499.75 and 189,638.34

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Solution

The fourth proportional to 217,787.46, 326,499.75 and 189,638.34 is: 284,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,787.46 : 326,499.75 = 189,638.34 : x
  2. Step 2: Convert to fraction form
    217,787.46/326,499.75 = 189,638.34/x
  3. Step 3: Cross multiply
    217,787.46x = 326,499.75 × 189,638.34
  4. Step 4: Simplify right side
    217,787.46x = 61,916,870,600.42
  5. Step 5: Solve for x
    x = 61,916,870,600.42/217,787.46
  6. Step 6: Final answer
    x = 284,299.52

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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.