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Finding the Fourth Proportional to 202,832.80, 279,929.64 and 112,195.60

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Solution

The fourth proportional to 202,832.80, 279,929.64 and 112,195.60 is: 154,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,832.80 : 279,929.64 = 112,195.60 : x
  2. Step 2: Convert to fraction form
    202,832.80/279,929.64 = 112,195.60/x
  3. Step 3: Cross multiply
    202,832.80x = 279,929.64 × 112,195.60
  4. Step 4: Simplify right side
    202,832.80x = 31,406,873,917.58
  5. Step 5: Solve for x
    x = 31,406,873,917.58/202,832.80
  6. Step 6: Final answer
    x = 154,841.20

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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.