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Finding the Fourth Proportional to 279,735.40, 386,036.58 and 166,562.92

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Solution

The fourth proportional to 279,735.40, 386,036.58 and 166,562.92 is: 229,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,735.40 : 386,036.58 = 166,562.92 : x
  2. Step 2: Convert to fraction form
    279,735.40/386,036.58 = 166,562.92/x
  3. Step 3: Cross multiply
    279,735.40x = 386,036.58 × 166,562.92
  4. Step 4: Simplify right side
    279,735.40x = 64,299,379,991.61
  5. Step 5: Solve for x
    x = 64,299,379,991.61/279,735.40
  6. Step 6: Final answer
    x = 229,857.86

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1.5x scale

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.