Home / 204,439.50-306,889.26-86,210.28

Finding the Fourth Proportional to 204,439.50, 306,889.26 and 86,210.28

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Solution

The fourth proportional to 204,439.50, 306,889.26 and 86,210.28 is: 129,412.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,439.50 : 306,889.26 = 86,210.28 : x
  2. Step 2: Convert to fraction form
    204,439.50/306,889.26 = 86,210.28/x
  3. Step 3: Cross multiply
    204,439.50x = 306,889.26 × 86,210.28
  4. Step 4: Simplify right side
    204,439.50x = 26,457,009,033.59
  5. Step 5: Solve for x
    x = 26,457,009,033.59/204,439.50
  6. Step 6: Final answer
    x = 129,412.41

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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.