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Finding the Fourth Proportional to 217,036.60, 325,523.70 and 83,979.64

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Solution

The fourth proportional to 217,036.60, 325,523.70 and 83,979.64 is: 125,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,036.60 : 325,523.70 = 83,979.64 : x
  2. Step 2: Convert to fraction form
    217,036.60/325,523.70 = 83,979.64/x
  3. Step 3: Cross multiply
    217,036.60x = 325,523.70 × 83,979.64
  4. Step 4: Simplify right side
    217,036.60x = 27,337,363,137.47
  5. Step 5: Solve for x
    x = 27,337,363,137.47/217,036.60
  6. Step 6: Final answer
    x = 125,957.39

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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.