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Finding the Fourth Proportional to 200,616.70, 280,338.50 and 200,616.70

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Solution

The fourth proportional to 200,616.70, 280,338.50 and 200,616.70 is: 280,338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,616.70 : 280,338.50 = 200,616.70 : x
  2. Step 2: Convert to fraction form
    200,616.70/280,338.50 = 200,616.70/x
  3. Step 3: Cross multiply
    200,616.70x = 280,338.50 × 200,616.70
  4. Step 4: Simplify right side
    200,616.70x = 56,240,584,752.95
  5. Step 5: Solve for x
    x = 56,240,584,752.95/200,616.70
  6. Step 6: Final answer
    x = 280,338.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.