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Finding the Fourth Proportional to 485,383.03, 669,851.40 and 270,524.59

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Solution

The fourth proportional to 485,383.03, 669,851.40 and 270,524.59 is: 373,336.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,383.03 : 669,851.40 = 270,524.59 : x
  2. Step 2: Convert to fraction form
    485,383.03/669,851.40 = 270,524.59/x
  3. Step 3: Cross multiply
    485,383.03x = 669,851.40 × 270,524.59
  4. Step 4: Simplify right side
    485,383.03x = 181,211,275,345.93
  5. Step 5: Solve for x
    x = 181,211,275,345.93/485,383.03
  6. Step 6: Final answer
    x = 373,336.65

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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.