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Finding the Fourth Proportional to 200,720.10, 301,080.15 and 199,337.70

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Solution

The fourth proportional to 200,720.10, 301,080.15 and 199,337.70 is: 299,006.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,720.10 : 301,080.15 = 199,337.70 : x
  2. Step 2: Convert to fraction form
    200,720.10/301,080.15 = 199,337.70/x
  3. Step 3: Cross multiply
    200,720.10x = 301,080.15 × 199,337.70
  4. Step 4: Simplify right side
    200,720.10x = 60,016,624,616.66
  5. Step 5: Solve for x
    x = 60,016,624,616.66/200,720.10
  6. Step 6: Final answer
    x = 299,006.55

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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.