Home / 204,947.80-307,464.90-86,558.20

Finding the Fourth Proportional to 204,947.80, 307,464.90 and 86,558.20

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Solution

The fourth proportional to 204,947.80, 307,464.90 and 86,558.20 is: 129,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,947.80 : 307,464.90 = 86,558.20 : x
  2. Step 2: Convert to fraction form
    204,947.80/307,464.90 = 86,558.20/x
  3. Step 3: Cross multiply
    204,947.80x = 307,464.90 × 86,558.20
  4. Step 4: Simplify right side
    204,947.80x = 26,613,608,307.18
  5. Step 5: Solve for x
    x = 26,613,608,307.18/204,947.80
  6. Step 6: Final answer
    x = 129,855.55

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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.