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Finding the Fourth Proportional to 310,557.57, 428,584.65 and 174,634.31

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Solution

The fourth proportional to 310,557.57, 428,584.65 and 174,634.31 is: 241,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,557.57 : 428,584.65 = 174,634.31 : x
  2. Step 2: Convert to fraction form
    310,557.57/428,584.65 = 174,634.31/x
  3. Step 3: Cross multiply
    310,557.57x = 428,584.65 × 174,634.31
  4. Step 4: Simplify right side
    310,557.57x = 74,845,584,629.34
  5. Step 5: Solve for x
    x = 74,845,584,629.34/310,557.57
  6. Step 6: Final answer
    x = 241,003.90

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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.