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Finding the Fourth Proportional to 202,685.85, 279,785.34 and 181,428.21

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Solution

The fourth proportional to 202,685.85, 279,785.34 and 181,428.21 is: 250,441.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,685.85 : 279,785.34 = 181,428.21 : x
  2. Step 2: Convert to fraction form
    202,685.85/279,785.34 = 181,428.21/x
  3. Step 3: Cross multiply
    202,685.85x = 279,785.34 × 181,428.21
  4. Step 4: Simplify right side
    202,685.85x = 50,760,953,420.44
  5. Step 5: Solve for x
    x = 50,760,953,420.44/202,685.85
  6. Step 6: Final answer
    x = 250,441.53

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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.