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Finding the Fourth Proportional to 202,790.32, 279,859.80 and 113,366.32

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Solution

The fourth proportional to 202,790.32, 279,859.80 and 113,366.32 is: 156,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,790.32 : 279,859.80 = 113,366.32 : x
  2. Step 2: Convert to fraction form
    202,790.32/279,859.80 = 113,366.32/x
  3. Step 3: Cross multiply
    202,790.32x = 279,859.80 × 113,366.32
  4. Step 4: Simplify right side
    202,790.32x = 31,726,675,641.94
  5. Step 5: Solve for x
    x = 31,726,675,641.94/202,790.32
  6. Step 6: Final answer
    x = 156,450.64

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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.