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Finding the Fourth Proportional to 202,710.32, 279,740.56 and 113,286.32

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Solution

The fourth proportional to 202,710.32, 279,740.56 and 113,286.32 is: 156,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,710.32 : 279,740.56 = 113,286.32 : x
  2. Step 2: Convert to fraction form
    202,710.32/279,740.56 = 113,286.32/x
  3. Step 3: Cross multiply
    202,710.32x = 279,740.56 × 113,286.32
  4. Step 4: Simplify right side
    202,710.32x = 31,690,778,597.14
  5. Step 5: Solve for x
    x = 31,690,778,597.14/202,710.32
  6. Step 6: Final answer
    x = 156,335.30

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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.