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Finding the Fourth Proportional to 202,236.75, 279,086.72 and 112,812.75

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Solution

The fourth proportional to 202,236.75, 279,086.72 and 112,812.75 is: 155,681.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,236.75 : 279,086.72 = 112,812.75 : x
  2. Step 2: Convert to fraction form
    202,236.75/279,086.72 = 112,812.75/x
  3. Step 3: Cross multiply
    202,236.75x = 279,086.72 × 112,812.75
  4. Step 4: Simplify right side
    202,236.75x = 31,484,539,807.62
  5. Step 5: Solve for x
    x = 31,484,539,807.62/202,236.75
  6. Step 6: Final answer
    x = 155,681.60

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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.