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Finding the Fourth Proportional to 401,651.27, 554,284.41 and 220,359.90

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Solution

The fourth proportional to 401,651.27, 554,284.41 and 220,359.90 is: 304,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,651.27 : 554,284.41 = 220,359.90 : x
  2. Step 2: Convert to fraction form
    401,651.27/554,284.41 = 220,359.90/x
  3. Step 3: Cross multiply
    401,651.27x = 554,284.41 × 220,359.90
  4. Step 4: Simplify right side
    401,651.27x = 122,142,058,411.38
  5. Step 5: Solve for x
    x = 122,142,058,411.38/401,651.27
  6. Step 6: Final answer
    x = 304,099.77

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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.