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Finding the Fourth Proportional to 672,135.40, 1,008,203.10 and 251,356.60

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Solution

The fourth proportional to 672,135.40, 1,008,203.10 and 251,356.60 is: 377,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,135.40 : 1,008,203.10 = 251,356.60 : x
  2. Step 2: Convert to fraction form
    672,135.40/1,008,203.10 = 251,356.60/x
  3. Step 3: Cross multiply
    672,135.40x = 1,008,203.10 × 251,356.60
  4. Step 4: Simplify right side
    672,135.40x = 253,418,503,325.46
  5. Step 5: Solve for x
    x = 253,418,503,325.46/672,135.40
  6. Step 6: Final answer
    x = 377,034.90

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Similar ratio
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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.