Home / 219,720.38-303,222.29-124,221.38

Finding the Fourth Proportional to 219,720.38, 303,222.29 and 124,221.38

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Solution

The fourth proportional to 219,720.38, 303,222.29 and 124,221.38 is: 171,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,720.38 : 303,222.29 = 124,221.38 : x
  2. Step 2: Convert to fraction form
    219,720.38/303,222.29 = 124,221.38/x
  3. Step 3: Cross multiply
    219,720.38x = 303,222.29 × 124,221.38
  4. Step 4: Simplify right side
    219,720.38x = 37,666,691,310.56
  5. Step 5: Solve for x
    x = 37,666,691,310.56/219,720.38
  6. Step 6: Final answer
    x = 171,430.12

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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.