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Finding the Fourth Proportional to 150,950.25, 208,258.25 and 90,540.45

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Solution

The fourth proportional to 150,950.25, 208,258.25 and 90,540.45 is: 124,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,950.25 : 208,258.25 = 90,540.45 : x
  2. Step 2: Convert to fraction form
    150,950.25/208,258.25 = 90,540.45/x
  3. Step 3: Cross multiply
    150,950.25x = 208,258.25 × 90,540.45
  4. Step 4: Simplify right side
    150,950.25x = 18,855,795,218.51
  5. Step 5: Solve for x
    x = 18,855,795,218.51/150,950.25
  6. Step 6: Final answer
    x = 124,913.97

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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.