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Finding the Fourth Proportional to 202,953.96, 280,076.82 and 112,313.76

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Solution

The fourth proportional to 202,953.96, 280,076.82 and 112,313.76 is: 154,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,953.96 : 280,076.82 = 112,313.76 : x
  2. Step 2: Convert to fraction form
    202,953.96/280,076.82 = 112,313.76/x
  3. Step 3: Cross multiply
    202,953.96x = 280,076.82 × 112,313.76
  4. Step 4: Simplify right side
    202,953.96x = 31,456,480,743.04
  5. Step 5: Solve for x
    x = 31,456,480,743.04/202,953.96
  6. Step 6: Final answer
    x = 154,993.19

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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.