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Finding the Fourth Proportional to 266,063.70, 399,095.55 and 123,908.70

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Solution

The fourth proportional to 266,063.70, 399,095.55 and 123,908.70 is: 185,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,063.70 : 399,095.55 = 123,908.70 : x
  2. Step 2: Convert to fraction form
    266,063.70/399,095.55 = 123,908.70/x
  3. Step 3: Cross multiply
    266,063.70x = 399,095.55 × 123,908.70
  4. Step 4: Simplify right side
    266,063.70x = 49,451,410,776.29
  5. Step 5: Solve for x
    x = 49,451,410,776.29/266,063.70
  6. Step 6: Final answer
    x = 185,863.05

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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.