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Finding the Fourth Proportional to 310,522.97, 465,190.54 and 260,243.69

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Solution

The fourth proportional to 310,522.97, 465,190.54 and 260,243.69 is: 389,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,522.97 : 465,190.54 = 260,243.69 : x
  2. Step 2: Convert to fraction form
    310,522.97/465,190.54 = 260,243.69/x
  3. Step 3: Cross multiply
    310,522.97x = 465,190.54 × 260,243.69
  4. Step 4: Simplify right side
    310,522.97x = 121,062,901,170.00
  5. Step 5: Solve for x
    x = 121,062,901,170.00/310,522.97
  6. Step 6: Final answer
    x = 389,867.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.