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Finding the Fourth Proportional to 202,599.89, 279,604.69 and 111,973.55

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Solution

The fourth proportional to 202,599.89, 279,604.69 and 111,973.55 is: 154,532.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,599.89 : 279,604.69 = 111,973.55 : x
  2. Step 2: Convert to fraction form
    202,599.89/279,604.69 = 111,973.55/x
  3. Step 3: Cross multiply
    202,599.89x = 279,604.69 × 111,973.55
  4. Step 4: Simplify right side
    202,599.89x = 31,308,330,155.03
  5. Step 5: Solve for x
    x = 31,308,330,155.03/202,599.89
  6. Step 6: Final answer
    x = 154,532.81

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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.