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Finding the Fourth Proportional to 238,662.12, 329,403.84 and 151,390.77

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Solution

The fourth proportional to 238,662.12, 329,403.84 and 151,390.77 is: 208,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,662.12 : 329,403.84 = 151,390.77 : x
  2. Step 2: Convert to fraction form
    238,662.12/329,403.84 = 151,390.77/x
  3. Step 3: Cross multiply
    238,662.12x = 329,403.84 × 151,390.77
  4. Step 4: Simplify right side
    238,662.12x = 49,868,700,978.56
  5. Step 5: Solve for x
    x = 49,868,700,978.56/238,662.12
  6. Step 6: Final answer
    x = 208,951.05

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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.