Home / 213,402.12-320,436.09-203,937.27

Finding the Fourth Proportional to 213,402.12, 320,436.09 and 203,937.27

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Solution

The fourth proportional to 213,402.12, 320,436.09 and 203,937.27 is: 306,224.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,402.12 : 320,436.09 = 203,937.27 : x
  2. Step 2: Convert to fraction form
    213,402.12/320,436.09 = 203,937.27/x
  3. Step 3: Cross multiply
    213,402.12x = 320,436.09 × 203,937.27
  4. Step 4: Simplify right side
    213,402.12x = 65,348,861,404.07
  5. Step 5: Solve for x
    x = 65,348,861,404.07/213,402.12
  6. Step 6: Final answer
    x = 306,224.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.