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Finding the Fourth Proportional to 266,695.80, 400,043.70 and 254,448.60

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Solution

The fourth proportional to 266,695.80, 400,043.70 and 254,448.60 is: 381,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,695.80 : 400,043.70 = 254,448.60 : x
  2. Step 2: Convert to fraction form
    266,695.80/400,043.70 = 254,448.60/x
  3. Step 3: Cross multiply
    266,695.80x = 400,043.70 × 254,448.60
  4. Step 4: Simplify right side
    266,695.80x = 101,790,559,403.82
  5. Step 5: Solve for x
    x = 101,790,559,403.82/266,695.80
  6. Step 6: Final answer
    x = 381,672.90

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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.