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Finding the Fourth Proportional to 202,829.98, 279,903.72 and 112,189.81

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Solution

The fourth proportional to 202,829.98, 279,903.72 and 112,189.81 is: 154,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,829.98 : 279,903.72 = 112,189.81 : x
  2. Step 2: Convert to fraction form
    202,829.98/279,903.72 = 112,189.81/x
  3. Step 3: Cross multiply
    202,829.98x = 279,903.72 × 112,189.81
  4. Step 4: Simplify right side
    202,829.98x = 31,402,345,165.09
  5. Step 5: Solve for x
    x = 31,402,345,165.09/202,829.98
  6. Step 6: Final answer
    x = 154,821.02

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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.