Home / 245,983.27-339,458.79-138,543.25

Finding the Fourth Proportional to 245,983.27, 339,458.79 and 138,543.25

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Solution

The fourth proportional to 245,983.27, 339,458.79 and 138,543.25 is: 191,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,983.27 : 339,458.79 = 138,543.25 : x
  2. Step 2: Convert to fraction form
    245,983.27/339,458.79 = 138,543.25/x
  3. Step 3: Cross multiply
    245,983.27x = 339,458.79 × 138,543.25
  4. Step 4: Simplify right side
    245,983.27x = 47,029,724,007.67
  5. Step 5: Solve for x
    x = 47,029,724,007.67/245,983.27
  6. Step 6: Final answer
    x = 191,190.74

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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.