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Finding the Fourth Proportional to 202,881.66, 279,944.55 and 131,264.70

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Solution

The fourth proportional to 202,881.66, 279,944.55 and 131,264.70 is: 181,124.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,881.66 : 279,944.55 = 131,264.70 : x
  2. Step 2: Convert to fraction form
    202,881.66/279,944.55 = 131,264.70/x
  3. Step 3: Cross multiply
    202,881.66x = 279,944.55 × 131,264.70
  4. Step 4: Simplify right side
    202,881.66x = 36,746,837,372.39
  5. Step 5: Solve for x
    x = 36,746,837,372.39/202,881.66
  6. Step 6: Final answer
    x = 181,124.49

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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.