Home / 245,654.16-338,998.82-138,224.13

Finding the Fourth Proportional to 245,654.16, 338,998.82 and 138,224.13

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Solution

The fourth proportional to 245,654.16, 338,998.82 and 138,224.13 is: 190,747.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,654.16 : 338,998.82 = 138,224.13 : x
  2. Step 2: Convert to fraction form
    245,654.16/338,998.82 = 138,224.13/x
  3. Step 3: Cross multiply
    245,654.16x = 338,998.82 × 138,224.13
  4. Step 4: Simplify right side
    245,654.16x = 46,857,816,274.41
  5. Step 5: Solve for x
    x = 46,857,816,274.41/245,654.16
  6. Step 6: Final answer
    x = 190,747.09

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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.