Home / 245,614.35-338,946.39-138,185.13

Finding the Fourth Proportional to 245,614.35, 338,946.39 and 138,185.13

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Solution

The fourth proportional to 245,614.35, 338,946.39 and 138,185.13 is: 190,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,614.35 : 338,946.39 = 138,185.13 : x
  2. Step 2: Convert to fraction form
    245,614.35/338,946.39 = 138,185.13/x
  3. Step 3: Cross multiply
    245,614.35x = 338,946.39 × 138,185.13
  4. Step 4: Simplify right side
    245,614.35x = 46,837,350,965.18
  5. Step 5: Solve for x
    x = 46,837,350,965.18/245,614.35
  6. Step 6: Final answer
    x = 190,694.68

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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.