Home / 401,758.30-554,432.25-220,466.98

Finding the Fourth Proportional to 401,758.30, 554,432.25 and 220,466.98

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Solution

The fourth proportional to 401,758.30, 554,432.25 and 220,466.98 is: 304,247.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,758.30 : 554,432.25 = 220,466.98 : x
  2. Step 2: Convert to fraction form
    401,758.30/554,432.25 = 220,466.98/x
  3. Step 3: Cross multiply
    401,758.30x = 554,432.25 × 220,466.98
  4. Step 4: Simplify right side
    401,758.30x = 122,234,003,772.11
  5. Step 5: Solve for x
    x = 122,234,003,772.11/401,758.30
  6. Step 6: Final answer
    x = 304,247.61

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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.