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Finding the Fourth Proportional to 266,666.87, 400,000.68 and 108,895.32

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Solution

The fourth proportional to 266,666.87, 400,000.68 and 108,895.32 is: 163,343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,666.87 : 400,000.68 = 108,895.32 : x
  2. Step 2: Convert to fraction form
    266,666.87/400,000.68 = 108,895.32/x
  3. Step 3: Cross multiply
    266,666.87x = 400,000.68 × 108,895.32
  4. Step 4: Simplify right side
    266,666.87x = 43,558,202,048.82
  5. Step 5: Solve for x
    x = 43,558,202,048.82/266,666.87
  6. Step 6: Final answer
    x = 163,343.13

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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.