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Finding the Fourth Proportional to 200,720.80, 301,081.20 and 200,720.80

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Solution

The fourth proportional to 200,720.80, 301,081.20 and 200,720.80 is: 301,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,720.80 : 301,081.20 = 200,720.80 : x
  2. Step 2: Convert to fraction form
    200,720.80/301,081.20 = 200,720.80/x
  3. Step 3: Cross multiply
    200,720.80x = 301,081.20 × 200,720.80
  4. Step 4: Simplify right side
    200,720.80x = 60,433,259,328.96
  5. Step 5: Solve for x
    x = 60,433,259,328.96/200,720.80
  6. Step 6: Final answer
    x = 301,081.20

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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.