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Finding the Fourth Proportional to 200,910.80, 300,847.80 and 159,438.80

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Solution

The fourth proportional to 200,910.80, 300,847.80 and 159,438.80 is: 238,746.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,910.80 : 300,847.80 = 159,438.80 : x
  2. Step 2: Convert to fraction form
    200,910.80/300,847.80 = 159,438.80/x
  3. Step 3: Cross multiply
    200,910.80x = 300,847.80 × 159,438.80
  4. Step 4: Simplify right side
    200,910.80x = 47,966,812,214.64
  5. Step 5: Solve for x
    x = 47,966,812,214.64/200,910.80
  6. Step 6: Final answer
    x = 238,746.81

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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.