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Finding the Fourth Proportional to 401,314.42, 553,819.29 and 220,025.91

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Solution

The fourth proportional to 401,314.42, 553,819.29 and 220,025.91 is: 303,638.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,314.42 : 553,819.29 = 220,025.91 : x
  2. Step 2: Convert to fraction form
    401,314.42/553,819.29 = 220,025.91/x
  3. Step 3: Cross multiply
    401,314.42x = 553,819.29 × 220,025.91
  4. Step 4: Simplify right side
    401,314.42x = 121,854,593,257.80
  5. Step 5: Solve for x
    x = 121,854,593,257.80/401,314.42
  6. Step 6: Final answer
    x = 303,638.71

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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.