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Finding the Fourth Proportional to 200,399.67, 276,903.36 and 157,718.34

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Solution

The fourth proportional to 200,399.67, 276,903.36 and 157,718.34 is: 217,928.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,399.67 : 276,903.36 = 157,718.34 : x
  2. Step 2: Convert to fraction form
    200,399.67/276,903.36 = 157,718.34/x
  3. Step 3: Cross multiply
    200,399.67x = 276,903.36 × 157,718.34
  4. Step 4: Simplify right side
    200,399.67x = 43,672,738,279.62
  5. Step 5: Solve for x
    x = 43,672,738,279.62/200,399.67
  6. Step 6: Final answer
    x = 217,928.19

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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.