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Finding the Fourth Proportional to 207,982.44, 287,014.92 and 117,338.40

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Solution

The fourth proportional to 207,982.44, 287,014.92 and 117,338.40 is: 161,926.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,982.44 : 287,014.92 = 117,338.40 : x
  2. Step 2: Convert to fraction form
    207,982.44/287,014.92 = 117,338.40/x
  3. Step 3: Cross multiply
    207,982.44x = 287,014.92 × 117,338.40
  4. Step 4: Simplify right side
    207,982.44x = 33,677,871,488.93
  5. Step 5: Solve for x
    x = 33,677,871,488.93/207,982.44
  6. Step 6: Final answer
    x = 161,926.51

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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.