Home / 506,215.05-759,336.21-221,759.25

Finding the Fourth Proportional to 506,215.05, 759,336.21 and 221,759.25

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Solution

The fourth proportional to 506,215.05, 759,336.21 and 221,759.25 is: 332,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,215.05 : 759,336.21 = 221,759.25 : x
  2. Step 2: Convert to fraction form
    506,215.05/759,336.21 = 221,759.25/x
  3. Step 3: Cross multiply
    506,215.05x = 759,336.21 × 221,759.25
  4. Step 4: Simplify right side
    506,215.05x = 168,389,828,427.44
  5. Step 5: Solve for x
    x = 168,389,828,427.44/506,215.05
  6. Step 6: Final answer
    x = 332,644.85

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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.