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Finding the Fourth Proportional to 217,948.74, 300,659.56 and 189,229.33

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Solution

The fourth proportional to 217,948.74, 300,659.56 and 189,229.33 is: 261,041.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,948.74 : 300,659.56 = 189,229.33 : x
  2. Step 2: Convert to fraction form
    217,948.74/300,659.56 = 189,229.33/x
  3. Step 3: Cross multiply
    217,948.74x = 300,659.56 × 189,229.33
  4. Step 4: Simplify right side
    217,948.74x = 56,893,607,096.89
  5. Step 5: Solve for x
    x = 56,893,607,096.89/217,948.74
  6. Step 6: Final answer
    x = 261,041.23

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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.