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Finding the Fourth Proportional to 418,674.90, 628,049.81 and 162,501.46

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Solution

The fourth proportional to 418,674.90, 628,049.81 and 162,501.46 is: 243,766.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,674.90 : 628,049.81 = 162,501.46 : x
  2. Step 2: Convert to fraction form
    418,674.90/628,049.81 = 162,501.46/x
  3. Step 3: Cross multiply
    418,674.90x = 628,049.81 × 162,501.46
  4. Step 4: Simplify right side
    418,674.90x = 102,059,010,025.41
  5. Step 5: Solve for x
    x = 102,059,010,025.41/418,674.90
  6. Step 6: Final answer
    x = 243,766.73

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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.