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Finding the Fourth Proportional to 217,011.80, 325,566.30 and 83,880.20

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Solution

The fourth proportional to 217,011.80, 325,566.30 and 83,880.20 is: 125,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,011.80 : 325,566.30 = 83,880.20 : x
  2. Step 2: Convert to fraction form
    217,011.80/325,566.30 = 83,880.20/x
  3. Step 3: Cross multiply
    217,011.80x = 325,566.30 × 83,880.20
  4. Step 4: Simplify right side
    217,011.80x = 27,308,566,357.26
  5. Step 5: Solve for x
    x = 27,308,566,357.26/217,011.80
  6. Step 6: Final answer
    x = 125,839.09

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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.