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Finding the Fourth Proportional to 204,903.40, 307,355.10 and 111,591.40

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Solution

The fourth proportional to 204,903.40, 307,355.10 and 111,591.40 is: 167,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,903.40 : 307,355.10 = 111,591.40 : x
  2. Step 2: Convert to fraction form
    204,903.40/307,355.10 = 111,591.40/x
  3. Step 3: Cross multiply
    204,903.40x = 307,355.10 × 111,591.40
  4. Step 4: Simplify right side
    204,903.40x = 34,298,185,906.14
  5. Step 5: Solve for x
    x = 34,298,185,906.14/204,903.40
  6. Step 6: Final answer
    x = 167,387.10

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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.