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Finding the Fourth Proportional to 202,959.78, 280,077.58 and 112,319.56

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Solution

The fourth proportional to 202,959.78, 280,077.58 and 112,319.56 is: 154,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,959.78 : 280,077.58 = 112,319.56 : x
  2. Step 2: Convert to fraction form
    202,959.78/280,077.58 = 112,319.56/x
  3. Step 3: Cross multiply
    202,959.78x = 280,077.58 × 112,319.56
  4. Step 4: Simplify right side
    202,959.78x = 31,458,190,551.46
  5. Step 5: Solve for x
    x = 31,458,190,551.46/202,959.78
  6. Step 6: Final answer
    x = 154,997.17

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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.