Home / 402,944.60-556,057.62-221,645.72

Finding the Fourth Proportional to 402,944.60, 556,057.62 and 221,645.72

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Solution

The fourth proportional to 402,944.60, 556,057.62 and 221,645.72 is: 305,867.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,944.60 : 556,057.62 = 221,645.72 : x
  2. Step 2: Convert to fraction form
    402,944.60/556,057.62 = 221,645.72/x
  3. Step 3: Cross multiply
    402,944.60x = 556,057.62 × 221,645.72
  4. Step 4: Simplify right side
    402,944.60x = 123,247,788,766.10
  5. Step 5: Solve for x
    x = 123,247,788,766.10/402,944.60
  6. Step 6: Final answer
    x = 305,867.83

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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.