Home / 290,906.07-401,499.68-168,380.70

Finding the Fourth Proportional to 290,906.07, 401,499.68 and 168,380.70

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Solution

The fourth proportional to 290,906.07, 401,499.68 and 168,380.70 is: 232,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,906.07 : 401,499.68 = 168,380.70 : x
  2. Step 2: Convert to fraction form
    290,906.07/401,499.68 = 168,380.70/x
  3. Step 3: Cross multiply
    290,906.07x = 401,499.68 × 168,380.70
  4. Step 4: Simplify right side
    290,906.07x = 67,604,797,168.18
  5. Step 5: Solve for x
    x = 67,604,797,168.18/290,906.07
  6. Step 6: Final answer
    x = 232,393.90

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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.