Home / 355,971.39-491,240.07-200,955.29

Finding the Fourth Proportional to 355,971.39, 491,240.07 and 200,955.29

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Solution

The fourth proportional to 355,971.39, 491,240.07 and 200,955.29 is: 277,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,971.39 : 491,240.07 = 200,955.29 : x
  2. Step 2: Convert to fraction form
    355,971.39/491,240.07 = 200,955.29/x
  3. Step 3: Cross multiply
    355,971.39x = 491,240.07 × 200,955.29
  4. Step 4: Simplify right side
    355,971.39x = 98,717,288,270.27
  5. Step 5: Solve for x
    x = 98,717,288,270.27/355,971.39
  6. Step 6: Final answer
    x = 277,318.04

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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.