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Finding the Fourth Proportional to 211,159.62, 316,736.90 and 84,797.60

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Solution

The fourth proportional to 211,159.62, 316,736.90 and 84,797.60 is: 127,195.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,159.62 : 316,736.90 = 84,797.60 : x
  2. Step 2: Convert to fraction form
    211,159.62/316,736.90 = 84,797.60/x
  3. Step 3: Cross multiply
    211,159.62x = 316,736.90 × 84,797.60
  4. Step 4: Simplify right side
    211,159.62x = 26,858,528,951.44
  5. Step 5: Solve for x
    x = 26,858,528,951.44/211,159.62
  6. Step 6: Final answer
    x = 127,195.38

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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.