Home / 245,899.70-339,338.24-138,471.02

Finding the Fourth Proportional to 245,899.70, 339,338.24 and 138,471.02

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Solution

The fourth proportional to 245,899.70, 339,338.24 and 138,471.02 is: 191,088.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,899.70 : 339,338.24 = 138,471.02 : x
  2. Step 2: Convert to fraction form
    245,899.70/339,338.24 = 138,471.02/x
  3. Step 3: Cross multiply
    245,899.70x = 339,338.24 × 138,471.02
  4. Step 4: Simplify right side
    245,899.70x = 46,988,512,217.80
  5. Step 5: Solve for x
    x = 46,988,512,217.80/245,899.70
  6. Step 6: Final answer
    x = 191,088.12

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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.