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Finding the Fourth Proportional to 493,105.68, 680,481 and 266,746.32

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Solution

The fourth proportional to 493,105.68, 680,481 and 266,746.32 is: 368,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,105.68 : 680,481 = 266,746.32 : x
  2. Step 2: Convert to fraction form
    493,105.68/680,481 = 266,746.32/x
  3. Step 3: Cross multiply
    493,105.68x = 680,481 × 266,746.32
  4. Step 4: Simplify right side
    493,105.68x = 181,515,802,579.92
  5. Step 5: Solve for x
    x = 181,515,802,579.92/493,105.68
  6. Step 6: Final answer
    x = 368,107.30

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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.