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Finding the Fourth Proportional to 202,887.78, 279,998.10 and 113,463.78

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Solution

The fourth proportional to 202,887.78, 279,998.10 and 113,463.78 is: 156,587.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,887.78 : 279,998.10 = 113,463.78 : x
  2. Step 2: Convert to fraction form
    202,887.78/279,998.10 = 113,463.78/x
  3. Step 3: Cross multiply
    202,887.78x = 279,998.10 × 113,463.78
  4. Step 4: Simplify right side
    202,887.78x = 31,769,642,818.82
  5. Step 5: Solve for x
    x = 31,769,642,818.82/202,887.78
  6. Step 6: Final answer
    x = 156,587.27

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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.