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Finding the Fourth Proportional to 202,801.84, 279,861.37 and 112,155.38

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Solution

The fourth proportional to 202,801.84, 279,861.37 and 112,155.38 is: 154,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,801.84 : 279,861.37 = 112,155.38 : x
  2. Step 2: Convert to fraction form
    202,801.84/279,861.37 = 112,155.38/x
  3. Step 3: Cross multiply
    202,801.84x = 279,861.37 × 112,155.38
  4. Step 4: Simplify right side
    202,801.84x = 31,387,958,299.67
  5. Step 5: Solve for x
    x = 31,387,958,299.67/202,801.84
  6. Step 6: Final answer
    x = 154,771.57

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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.