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Finding the Fourth Proportional to 225,701.10, 311,212.26 and 143,920.26

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Solution

The fourth proportional to 225,701.10, 311,212.26 and 143,920.26 is: 198,447.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,701.10 : 311,212.26 = 143,920.26 : x
  2. Step 2: Convert to fraction form
    225,701.10/311,212.26 = 143,920.26/x
  3. Step 3: Cross multiply
    225,701.10x = 311,212.26 × 143,920.26
  4. Step 4: Simplify right side
    225,701.10x = 44,789,749,374.39
  5. Step 5: Solve for x
    x = 44,789,749,374.39/225,701.10
  6. Step 6: Final answer
    x = 198,447.19

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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.