Home / 300,780.42-415,059.09-164,787.30

Finding the Fourth Proportional to 300,780.42, 415,059.09 and 164,787.30

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Solution

The fourth proportional to 300,780.42, 415,059.09 and 164,787.30 is: 227,396.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,780.42 : 415,059.09 = 164,787.30 : x
  2. Step 2: Convert to fraction form
    300,780.42/415,059.09 = 164,787.30/x
  3. Step 3: Cross multiply
    300,780.42x = 415,059.09 × 164,787.30
  4. Step 4: Simplify right side
    300,780.42x = 68,396,466,781.56
  5. Step 5: Solve for x
    x = 68,396,466,781.56/300,780.42
  6. Step 6: Final answer
    x = 227,396.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.