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Finding the Fourth Proportional to 207,995.45, 287,033.67 and 117,350.60

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Solution

The fourth proportional to 207,995.45, 287,033.67 and 117,350.60 is: 161,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,995.45 : 287,033.67 = 117,350.60 : x
  2. Step 2: Convert to fraction form
    207,995.45/287,033.67 = 117,350.60/x
  3. Step 3: Cross multiply
    207,995.45x = 287,033.67 × 117,350.60
  4. Step 4: Simplify right side
    207,995.45x = 33,683,571,959.53
  5. Step 5: Solve for x
    x = 33,683,571,959.53/207,995.45
  6. Step 6: Final answer
    x = 161,943.80

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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.