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Finding the Fourth Proportional to 310,960.80, 429,134.36 and 174,999.60

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Solution

The fourth proportional to 310,960.80, 429,134.36 and 174,999.60 is: 241,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,960.80 : 429,134.36 = 174,999.60 : x
  2. Step 2: Convert to fraction form
    310,960.80/429,134.36 = 174,999.60/x
  3. Step 3: Cross multiply
    310,960.80x = 429,134.36 × 174,999.60
  4. Step 4: Simplify right side
    310,960.80x = 75,098,340,471.26
  5. Step 5: Solve for x
    x = 75,098,340,471.26/310,960.80
  6. Step 6: Final answer
    x = 241,504.20

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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.