Home / 229,112.12-316,286.70-205,142.60

Finding the Fourth Proportional to 229,112.12, 316,286.70 and 205,142.60

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Solution

The fourth proportional to 229,112.12, 316,286.70 and 205,142.60 is: 283,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,112.12 : 316,286.70 = 205,142.60 : x
  2. Step 2: Convert to fraction form
    229,112.12/316,286.70 = 205,142.60/x
  3. Step 3: Cross multiply
    229,112.12x = 316,286.70 × 205,142.60
  4. Step 4: Simplify right side
    229,112.12x = 64,883,875,983.42
  5. Step 5: Solve for x
    x = 64,883,875,983.42/229,112.12
  6. Step 6: Final answer
    x = 283,197.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.