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Finding the Fourth Proportional to 266,456.60, 399,344.70 and 108,506.60

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Solution

The fourth proportional to 266,456.60, 399,344.70 and 108,506.60 is: 162,621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,456.60 : 399,344.70 = 108,506.60 : x
  2. Step 2: Convert to fraction form
    266,456.60/399,344.70 = 108,506.60/x
  3. Step 3: Cross multiply
    266,456.60x = 399,344.70 × 108,506.60
  4. Step 4: Simplify right side
    266,456.60x = 43,331,535,625.02
  5. Step 5: Solve for x
    x = 43,331,535,625.02/266,456.60
  6. Step 6: Final answer
    x = 162,621.36

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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.