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Finding the Fourth Proportional to 322,873.71, 484,419.56 and 142,934.32

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Solution

The fourth proportional to 322,873.71, 484,419.56 and 142,934.32 is: 214,449.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,873.71 : 484,419.56 = 142,934.32 : x
  2. Step 2: Convert to fraction form
    322,873.71/484,419.56 = 142,934.32/x
  3. Step 3: Cross multiply
    322,873.71x = 484,419.56 × 142,934.32
  4. Step 4: Simplify right side
    322,873.71x = 69,240,180,403.30
  5. Step 5: Solve for x
    x = 69,240,180,403.30/322,873.71
  6. Step 6: Final answer
    x = 214,449.73

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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.