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Finding the Fourth Proportional to 418,826.01, 628,113.42 and 178,930.22

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Solution

The fourth proportional to 418,826.01, 628,113.42 and 178,930.22 is: 268,341.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,826.01 : 628,113.42 = 178,930.22 : x
  2. Step 2: Convert to fraction form
    418,826.01/628,113.42 = 178,930.22/x
  3. Step 3: Cross multiply
    418,826.01x = 628,113.42 × 178,930.22
  4. Step 4: Simplify right side
    418,826.01x = 112,388,472,425.55
  5. Step 5: Solve for x
    x = 112,388,472,425.55/418,826.01
  6. Step 6: Final answer
    x = 268,341.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.