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Finding the Fourth Proportional to 251,808.40, 377,309.40 and 133,325.20

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Solution

The fourth proportional to 251,808.40, 377,309.40 and 133,325.20 is: 199,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,808.40 : 377,309.40 = 133,325.20 : x
  2. Step 2: Convert to fraction form
    251,808.40/377,309.40 = 133,325.20/x
  3. Step 3: Cross multiply
    251,808.40x = 377,309.40 × 133,325.20
  4. Step 4: Simplify right side
    251,808.40x = 50,304,851,216.88
  5. Step 5: Solve for x
    x = 50,304,851,216.88/251,808.40
  6. Step 6: Final answer
    x = 199,774.32

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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.