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Finding the Fourth Proportional to 217,777.36, 300,402.44 and 137,064.76

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Solution

The fourth proportional to 217,777.36, 300,402.44 and 137,064.76 is: 189,067.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,777.36 : 300,402.44 = 137,064.76 : x
  2. Step 2: Convert to fraction form
    217,777.36/300,402.44 = 137,064.76/x
  3. Step 3: Cross multiply
    217,777.36x = 300,402.44 × 137,064.76
  4. Step 4: Simplify right side
    217,777.36x = 41,174,587,419.68
  5. Step 5: Solve for x
    x = 41,174,587,419.68/217,777.36
  6. Step 6: Final answer
    x = 189,067.35

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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.