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Finding the Fourth Proportional to 317,813.33, 476,720.78 and 77,928.29

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Solution

The fourth proportional to 317,813.33, 476,720.78 and 77,928.29 is: 116,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,813.33 : 476,720.78 = 77,928.29 : x
  2. Step 2: Convert to fraction form
    317,813.33/476,720.78 = 77,928.29/x
  3. Step 3: Cross multiply
    317,813.33x = 476,720.78 × 77,928.29
  4. Step 4: Simplify right side
    317,813.33x = 37,150,034,207.32
  5. Step 5: Solve for x
    x = 37,150,034,207.32/317,813.33
  6. Step 6: Final answer
    x = 116,892.62

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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.