Home / 217,179.45-325,880.64-103,456.05

Finding the Fourth Proportional to 217,179.45, 325,880.64 and 103,456.05

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Solution

The fourth proportional to 217,179.45, 325,880.64 and 103,456.05 is: 155,237.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,179.45 : 325,880.64 = 103,456.05 : x
  2. Step 2: Convert to fraction form
    217,179.45/325,880.64 = 103,456.05/x
  3. Step 3: Cross multiply
    217,179.45x = 325,880.64 × 103,456.05
  4. Step 4: Simplify right side
    217,179.45x = 33,714,323,785.87
  5. Step 5: Solve for x
    x = 33,714,323,785.87/217,179.45
  6. Step 6: Final answer
    x = 155,237.17

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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.