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Finding the Fourth Proportional to 211,528.40, 317,465.40 and 204,616.40

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Solution

The fourth proportional to 211,528.40, 317,465.40 and 204,616.40 is: 307,091.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,528.40 : 317,465.40 = 204,616.40 : x
  2. Step 2: Convert to fraction form
    211,528.40/317,465.40 = 204,616.40/x
  3. Step 3: Cross multiply
    211,528.40x = 317,465.40 × 204,616.40
  4. Step 4: Simplify right side
    211,528.40x = 64,958,627,272.56
  5. Step 5: Solve for x
    x = 64,958,627,272.56/211,528.40
  6. Step 6: Final answer
    x = 307,091.75

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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.