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Finding the Fourth Proportional to 340,774.35, 511,236.72 and 104,135.49

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Solution

The fourth proportional to 340,774.35, 511,236.72 and 104,135.49 is: 156,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,774.35 : 511,236.72 = 104,135.49 : x
  2. Step 2: Convert to fraction form
    340,774.35/511,236.72 = 104,135.49/x
  3. Step 3: Cross multiply
    340,774.35x = 511,236.72 × 104,135.49
  4. Step 4: Simplify right side
    340,774.35x = 53,237,886,343.19
  5. Step 5: Solve for x
    x = 53,237,886,343.19/340,774.35
  6. Step 6: Final answer
    x = 156,226.21

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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.