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Finding the Fourth Proportional to 400,661.67, 552,891.92 and 219,338.85

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Solution

The fourth proportional to 400,661.67, 552,891.92 and 219,338.85 is: 302,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,661.67 : 552,891.92 = 219,338.85 : x
  2. Step 2: Convert to fraction form
    400,661.67/552,891.92 = 219,338.85/x
  3. Step 3: Cross multiply
    400,661.67x = 552,891.92 × 219,338.85
  4. Step 4: Simplify right side
    400,661.67x = 121,270,676,810.40
  5. Step 5: Solve for x
    x = 121,270,676,810.40/400,661.67
  6. Step 6: Final answer
    x = 302,676.01

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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.