Home / 353,241.27-487,301.49-209,899.80

Finding the Fourth Proportional to 353,241.27, 487,301.49 and 209,899.80

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Solution

The fourth proportional to 353,241.27, 487,301.49 and 209,899.80 is: 289,559.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,241.27 : 487,301.49 = 209,899.80 : x
  2. Step 2: Convert to fraction form
    353,241.27/487,301.49 = 209,899.80/x
  3. Step 3: Cross multiply
    353,241.27x = 487,301.49 × 209,899.80
  4. Step 4: Simplify right side
    353,241.27x = 102,284,485,290.70
  5. Step 5: Solve for x
    x = 102,284,485,290.70/353,241.27
  6. Step 6: Final answer
    x = 289,559.84

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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.