Home / 427,220.26-641,215.59-227,706.82

Finding the Fourth Proportional to 427,220.26, 641,215.59 and 227,706.82

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Solution

The fourth proportional to 427,220.26, 641,215.59 and 227,706.82 is: 341,765.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,220.26 : 641,215.59 = 227,706.82 : x
  2. Step 2: Convert to fraction form
    427,220.26/641,215.59 = 227,706.82/x
  3. Step 3: Cross multiply
    427,220.26x = 641,215.59 × 227,706.82
  4. Step 4: Simplify right side
    427,220.26x = 146,009,162,933.32
  5. Step 5: Solve for x
    x = 146,009,162,933.32/427,220.26
  6. Step 6: Final answer
    x = 341,765.54

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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.