Home / 317,867.20-476,858.88-130,776.64

Finding the Fourth Proportional to 317,867.20, 476,858.88 and 130,776.64

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Solution

The fourth proportional to 317,867.20, 476,858.88 and 130,776.64 is: 196,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,867.20 : 476,858.88 = 130,776.64 : x
  2. Step 2: Convert to fraction form
    317,867.20/476,858.88 = 130,776.64/x
  3. Step 3: Cross multiply
    317,867.20x = 476,858.88 × 130,776.64
  4. Step 4: Simplify right side
    317,867.20x = 62,362,002,080.56
  5. Step 5: Solve for x
    x = 62,362,002,080.56/317,867.20
  6. Step 6: Final answer
    x = 196,188.86

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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.