Home / 245,655.23-339,010.83-138,229.07

Finding the Fourth Proportional to 245,655.23, 339,010.83 and 138,229.07

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Solution

The fourth proportional to 245,655.23, 339,010.83 and 138,229.07 is: 190,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,655.23 : 339,010.83 = 138,229.07 : x
  2. Step 2: Convert to fraction form
    245,655.23/339,010.83 = 138,229.07/x
  3. Step 3: Cross multiply
    245,655.23x = 339,010.83 × 138,229.07
  4. Step 4: Simplify right side
    245,655.23x = 46,861,150,055.77
  5. Step 5: Solve for x
    x = 46,861,150,055.77/245,655.23
  6. Step 6: Final answer
    x = 190,759.83

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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.