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Finding the Fourth Proportional to 217,017.80, 325,736.36 and 104,776.85

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Solution

The fourth proportional to 217,017.80, 325,736.36 and 104,776.85 is: 157,266.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,017.80 : 325,736.36 = 104,776.85 : x
  2. Step 2: Convert to fraction form
    217,017.80/325,736.36 = 104,776.85/x
  3. Step 3: Cross multiply
    217,017.80x = 325,736.36 × 104,776.85
  4. Step 4: Simplify right side
    217,017.80x = 34,129,630,414.64
  5. Step 5: Solve for x
    x = 34,129,630,414.64/217,017.80
  6. Step 6: Final answer
    x = 157,266.50

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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.