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Finding the Fourth Proportional to 310,558.38, 428,517.06 and 174,573.48

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Solution

The fourth proportional to 310,558.38, 428,517.06 and 174,573.48 is: 240,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,558.38 : 428,517.06 = 174,573.48 : x
  2. Step 2: Convert to fraction form
    310,558.38/428,517.06 = 174,573.48/x
  3. Step 3: Cross multiply
    310,558.38x = 428,517.06 × 174,573.48
  4. Step 4: Simplify right side
    310,558.38x = 74,807,714,403.57
  5. Step 5: Solve for x
    x = 74,807,714,403.57/310,558.38
  6. Step 6: Final answer
    x = 240,881.33

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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.