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Finding the Fourth Proportional to 401,809.97, 554,496.08 and 220,524.86

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Solution

The fourth proportional to 401,809.97, 554,496.08 and 220,524.86 is: 304,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,809.97 : 554,496.08 = 220,524.86 : x
  2. Step 2: Convert to fraction form
    401,809.97/554,496.08 = 220,524.86/x
  3. Step 3: Cross multiply
    401,809.97x = 554,496.08 × 220,524.86
  4. Step 4: Simplify right side
    401,809.97x = 122,280,166,537.44
  5. Step 5: Solve for x
    x = 122,280,166,537.44/401,809.97
  6. Step 6: Final answer
    x = 304,323.38

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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.