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Finding the Fourth Proportional to 266,606.80, 400,063.80 and 100,411.60

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Solution

The fourth proportional to 266,606.80, 400,063.80 and 100,411.60 is: 150,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,606.80 : 400,063.80 = 100,411.60 : x
  2. Step 2: Convert to fraction form
    266,606.80/400,063.80 = 100,411.60/x
  3. Step 3: Cross multiply
    266,606.80x = 400,063.80 × 100,411.60
  4. Step 4: Simplify right side
    266,606.80x = 40,171,046,260.08
  5. Step 5: Solve for x
    x = 40,171,046,260.08/266,606.80
  6. Step 6: Final answer
    x = 150,675.25

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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.