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Finding the Fourth Proportional to 331,068, 456,842.25 and 185,840.54

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Solution

The fourth proportional to 331,068, 456,842.25 and 185,840.54 is: 256,442.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,068 : 456,842.25 = 185,840.54 : x
  2. Step 2: Convert to fraction form
    331,068/456,842.25 = 185,840.54/x
  3. Step 3: Cross multiply
    331,068x = 456,842.25 × 185,840.54
  4. Step 4: Simplify right side
    331,068x = 84,899,808,150.60
  5. Step 5: Solve for x
    x = 84,899,808,150.60/331,068
  6. Step 6: Final answer
    x = 256,442.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.