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Finding the Fourth Proportional to 493,116.10, 680,500.21 and 266,761.60

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Solution

The fourth proportional to 493,116.10, 680,500.21 and 266,761.60 is: 368,131.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,116.10 : 680,500.21 = 266,761.60 : x
  2. Step 2: Convert to fraction form
    493,116.10/680,500.21 = 266,761.60/x
  3. Step 3: Cross multiply
    493,116.10x = 680,500.21 × 266,761.60
  4. Step 4: Simplify right side
    493,116.10x = 181,531,322,451.78
  5. Step 5: Solve for x
    x = 181,531,322,451.78/493,116.10
  6. Step 6: Final answer
    x = 368,131.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.