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Finding the Fourth Proportional to 310,552.57, 428,577.75 and 174,629.31

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Solution

The fourth proportional to 310,552.57, 428,577.75 and 174,629.31 is: 240,997.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,552.57 : 428,577.75 = 174,629.31 : x
  2. Step 2: Convert to fraction form
    310,552.57/428,577.75 = 174,629.31/x
  3. Step 3: Cross multiply
    310,552.57x = 428,577.75 × 174,629.31
  4. Step 4: Simplify right side
    310,552.57x = 74,842,236,763.85
  5. Step 5: Solve for x
    x = 74,842,236,763.85/310,552.57
  6. Step 6: Final answer
    x = 240,997.00

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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.