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Finding the Fourth Proportional to 203,153, 280,258.10 and 131,556.10

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Solution

The fourth proportional to 203,153, 280,258.10 and 131,556.10 is: 181,487.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,153 : 280,258.10 = 131,556.10 : x
  2. Step 2: Convert to fraction form
    203,153/280,258.10 = 131,556.10/x
  3. Step 3: Cross multiply
    203,153x = 280,258.10 × 131,556.10
  4. Step 4: Simplify right side
    203,153x = 36,869,662,629.41
  5. Step 5: Solve for x
    x = 36,869,662,629.41/203,153
  6. Step 6: Final answer
    x = 181,487.17

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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.