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Finding the Fourth Proportional to 316,755.38, 436,772.14 and 201,852

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Solution

The fourth proportional to 316,755.38, 436,772.14 and 201,852 is: 278,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,755.38 : 436,772.14 = 201,852 : x
  2. Step 2: Convert to fraction form
    316,755.38/436,772.14 = 201,852/x
  3. Step 3: Cross multiply
    316,755.38x = 436,772.14 × 201,852
  4. Step 4: Simplify right side
    316,755.38x = 88,163,330,003.28
  5. Step 5: Solve for x
    x = 88,163,330,003.28/316,755.38
  6. Step 6: Final answer
    x = 278,332.55

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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.