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Finding the Fourth Proportional to 493,305.30, 680,763.42 and 266,950.80

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Solution

The fourth proportional to 493,305.30, 680,763.42 and 266,950.80 is: 368,393.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,305.30 : 680,763.42 = 266,950.80 : x
  2. Step 2: Convert to fraction form
    493,305.30/680,763.42 = 266,950.80/x
  3. Step 3: Cross multiply
    493,305.30x = 680,763.42 × 266,950.80
  4. Step 4: Simplify right side
    493,305.30x = 181,730,339,579.74
  5. Step 5: Solve for x
    x = 181,730,339,579.74/493,305.30
  6. Step 6: Final answer
    x = 368,393.24

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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.