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Finding the Fourth Proportional to 401,670.08, 554,286 and 220,377.92

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Solution

The fourth proportional to 401,670.08, 554,286 and 220,377.92 is: 304,111.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,670.08 : 554,286 = 220,377.92 : x
  2. Step 2: Convert to fraction form
    401,670.08/554,286 = 220,377.92/x
  3. Step 3: Cross multiply
    401,670.08x = 554,286 × 220,377.92
  4. Step 4: Simplify right side
    401,670.08x = 122,152,395,765.12
  5. Step 5: Solve for x
    x = 122,152,395,765.12/401,670.08
  6. Step 6: Final answer
    x = 304,111.26

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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.