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Finding the Fourth Proportional to 202,353.64, 279,248.43 and 111,709.73

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Solution

The fourth proportional to 202,353.64, 279,248.43 and 111,709.73 is: 154,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,353.64 : 279,248.43 = 111,709.73 : x
  2. Step 2: Convert to fraction form
    202,353.64/279,248.43 = 111,709.73/x
  3. Step 3: Cross multiply
    202,353.64x = 279,248.43 × 111,709.73
  4. Step 4: Simplify right side
    202,353.64x = 31,194,765,321.98
  5. Step 5: Solve for x
    x = 31,194,765,321.98/202,353.64
  6. Step 6: Final answer
    x = 154,159.65

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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.