Home / 217,019.90-325,011.45-133,039.10

Finding the Fourth Proportional to 217,019.90, 325,011.45 and 133,039.10

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Solution

The fourth proportional to 217,019.90, 325,011.45 and 133,039.10 is: 199,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,019.90 : 325,011.45 = 133,039.10 : x
  2. Step 2: Convert to fraction form
    217,019.90/325,011.45 = 133,039.10/x
  3. Step 3: Cross multiply
    217,019.90x = 325,011.45 × 133,039.10
  4. Step 4: Simplify right side
    217,019.90x = 43,239,230,797.70
  5. Step 5: Solve for x
    x = 43,239,230,797.70/217,019.90
  6. Step 6: Final answer
    x = 199,240.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.