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Finding the Fourth Proportional to 418,532.58, 628,026.75 and 181,874.34

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Solution

The fourth proportional to 418,532.58, 628,026.75 and 181,874.34 is: 272,910.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,532.58 : 628,026.75 = 181,874.34 : x
  2. Step 2: Convert to fraction form
    418,532.58/628,026.75 = 181,874.34/x
  3. Step 3: Cross multiply
    418,532.58x = 628,026.75 × 181,874.34
  4. Step 4: Simplify right side
    418,532.58x = 114,221,950,658.60
  5. Step 5: Solve for x
    x = 114,221,950,658.60/418,532.58
  6. Step 6: Final answer
    x = 272,910.54

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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.