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Finding the Fourth Proportional to 207,331.80, 310,767.30 and 113,904.60

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Solution

The fourth proportional to 207,331.80, 310,767.30 and 113,904.60 is: 170,730.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,331.80 : 310,767.30 = 113,904.60 : x
  2. Step 2: Convert to fraction form
    207,331.80/310,767.30 = 113,904.60/x
  3. Step 3: Cross multiply
    207,331.80x = 310,767.30 × 113,904.60
  4. Step 4: Simplify right side
    207,331.80x = 35,397,824,999.58
  5. Step 5: Solve for x
    x = 35,397,824,999.58/207,331.80
  6. Step 6: Final answer
    x = 170,730.32

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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.