Home / 217,431-300,055.32-126,849.24

Finding the Fourth Proportional to 217,431, 300,055.32 and 126,849.24

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Solution

The fourth proportional to 217,431, 300,055.32 and 126,849.24 is: 175,052.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,431 : 300,055.32 = 126,849.24 : x
  2. Step 2: Convert to fraction form
    217,431/300,055.32 = 126,849.24/x
  3. Step 3: Cross multiply
    217,431x = 300,055.32 × 126,849.24
  4. Step 4: Simplify right side
    217,431x = 38,061,789,299.96
  5. Step 5: Solve for x
    x = 38,061,789,299.96/217,431
  6. Step 6: Final answer
    x = 175,052.27

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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.