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Finding the Fourth Proportional to 310,067.43, 427,866.78 and 174,090.70

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Solution

The fourth proportional to 310,067.43, 427,866.78 and 174,090.70 is: 240,230.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,067.43 : 427,866.78 = 174,090.70 : x
  2. Step 2: Convert to fraction form
    310,067.43/427,866.78 = 174,090.70/x
  3. Step 3: Cross multiply
    310,067.43x = 427,866.78 × 174,090.70
  4. Step 4: Simplify right side
    310,067.43x = 74,487,627,236.95
  5. Step 5: Solve for x
    x = 74,487,627,236.95/310,067.43
  6. Step 6: Final answer
    x = 240,230.41

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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.