Home / 217,489.43-300,073.74-126,849.35

Finding the Fourth Proportional to 217,489.43, 300,073.74 and 126,849.35

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Solution

The fourth proportional to 217,489.43, 300,073.74 and 126,849.35 is: 175,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,489.43 : 300,073.74 = 126,849.35 : x
  2. Step 2: Convert to fraction form
    217,489.43/300,073.74 = 126,849.35/x
  3. Step 3: Cross multiply
    217,489.43x = 300,073.74 × 126,849.35
  4. Step 4: Simplify right side
    217,489.43x = 38,064,158,871.07
  5. Step 5: Solve for x
    x = 38,064,158,871.07/217,489.43
  6. Step 6: Final answer
    x = 175,016.13

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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.