Home / 357,789.03-493,543.26-223,419.75

Finding the Fourth Proportional to 357,789.03, 493,543.26 and 223,419.75

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Solution

The fourth proportional to 357,789.03, 493,543.26 and 223,419.75 is: 308,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,789.03 : 493,543.26 = 223,419.75 : x
  2. Step 2: Convert to fraction form
    357,789.03/493,543.26 = 223,419.75/x
  3. Step 3: Cross multiply
    357,789.03x = 493,543.26 × 223,419.75
  4. Step 4: Simplify right side
    357,789.03x = 110,267,311,763.39
  5. Step 5: Solve for x
    x = 110,267,311,763.39/357,789.03
  6. Step 6: Final answer
    x = 308,190.87

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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.