Home / 317,912.20-476,867.07-81,254.50

Finding the Fourth Proportional to 317,912.20, 476,867.07 and 81,254.50

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Solution

The fourth proportional to 317,912.20, 476,867.07 and 81,254.50 is: 121,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,912.20 : 476,867.07 = 81,254.50 : x
  2. Step 2: Convert to fraction form
    317,912.20/476,867.07 = 81,254.50/x
  3. Step 3: Cross multiply
    317,912.20x = 476,867.07 × 81,254.50
  4. Step 4: Simplify right side
    317,912.20x = 38,747,595,339.32
  5. Step 5: Solve for x
    x = 38,747,595,339.32/317,912.20
  6. Step 6: Final answer
    x = 121,881.44

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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.