Home / 245,090.28-338,225.94-137,660.34

Finding the Fourth Proportional to 245,090.28, 338,225.94 and 137,660.34

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Solution

The fourth proportional to 245,090.28, 338,225.94 and 137,660.34 is: 189,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,090.28 : 338,225.94 = 137,660.34 : x
  2. Step 2: Convert to fraction form
    245,090.28/338,225.94 = 137,660.34/x
  3. Step 3: Cross multiply
    245,090.28x = 338,225.94 × 137,660.34
  4. Step 4: Simplify right side
    245,090.28x = 46,560,297,897.22
  5. Step 5: Solve for x
    x = 46,560,297,897.22/245,090.28
  6. Step 6: Final answer
    x = 189,972.03

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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.