Home / 405,029.88-558,942.30-223,738.20

Finding the Fourth Proportional to 405,029.88, 558,942.30 and 223,738.20

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Solution

The fourth proportional to 405,029.88, 558,942.30 and 223,738.20 is: 308,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,029.88 : 558,942.30 = 223,738.20 : x
  2. Step 2: Convert to fraction form
    405,029.88/558,942.30 = 223,738.20/x
  3. Step 3: Cross multiply
    405,029.88x = 558,942.30 × 223,738.20
  4. Step 4: Simplify right side
    405,029.88x = 125,056,744,105.86
  5. Step 5: Solve for x
    x = 125,056,744,105.86/405,029.88
  6. Step 6: Final answer
    x = 308,759.30

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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.