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Finding the Fourth Proportional to 200,611.70, 280,331.50 and 200,611.70

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Solution

The fourth proportional to 200,611.70, 280,331.50 and 200,611.70 is: 280,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,611.70 : 280,331.50 = 200,611.70 : x
  2. Step 2: Convert to fraction form
    200,611.70/280,331.50 = 200,611.70/x
  3. Step 3: Cross multiply
    200,611.70x = 280,331.50 × 200,611.70
  4. Step 4: Simplify right side
    200,611.70x = 56,237,778,778.55
  5. Step 5: Solve for x
    x = 56,237,778,778.55/200,611.70
  6. Step 6: Final answer
    x = 280,331.50

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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.