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Finding the Fourth Proportional to 279,037.26, 384,388.05 and 202,330.93

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Solution

The fourth proportional to 279,037.26, 384,388.05 and 202,330.93 is: 278,721.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,037.26 : 384,388.05 = 202,330.93 : x
  2. Step 2: Convert to fraction form
    279,037.26/384,388.05 = 202,330.93/x
  3. Step 3: Cross multiply
    279,037.26x = 384,388.05 × 202,330.93
  4. Step 4: Simplify right side
    279,037.26x = 77,773,591,637.39
  5. Step 5: Solve for x
    x = 77,773,591,637.39/279,037.26
  6. Step 6: Final answer
    x = 278,721.17

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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.