Home / 245,663.14-339,035.07-138,226.90

Finding the Fourth Proportional to 245,663.14, 339,035.07 and 138,226.90

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Solution

The fourth proportional to 245,663.14, 339,035.07 and 138,226.90 is: 190,764.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,663.14 : 339,035.07 = 138,226.90 : x
  2. Step 2: Convert to fraction form
    245,663.14/339,035.07 = 138,226.90/x
  3. Step 3: Cross multiply
    245,663.14x = 339,035.07 × 138,226.90
  4. Step 4: Simplify right side
    245,663.14x = 46,863,766,717.38
  5. Step 5: Solve for x
    x = 46,863,766,717.38/245,663.14
  6. Step 6: Final answer
    x = 190,764.34

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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.