Home / 245,677.17-339,054.09-138,240.39

Finding the Fourth Proportional to 245,677.17, 339,054.09 and 138,240.39

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Solution

The fourth proportional to 245,677.17, 339,054.09 and 138,240.39 is: 190,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,677.17 : 339,054.09 = 138,240.39 : x
  2. Step 2: Convert to fraction form
    245,677.17/339,054.09 = 138,240.39/x
  3. Step 3: Cross multiply
    245,677.17x = 339,054.09 × 138,240.39
  4. Step 4: Simplify right side
    245,677.17x = 46,870,969,632.70
  5. Step 5: Solve for x
    x = 46,870,969,632.70/245,677.17
  6. Step 6: Final answer
    x = 190,782.76

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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.