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Finding the Fourth Proportional to 321,575.71, 482,367.63 and 121,842.46

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Solution

The fourth proportional to 321,575.71, 482,367.63 and 121,842.46 is: 182,765.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,575.71 : 482,367.63 = 121,842.46 : x
  2. Step 2: Convert to fraction form
    321,575.71/482,367.63 = 121,842.46/x
  3. Step 3: Cross multiply
    321,575.71x = 482,367.63 × 121,842.46
  4. Step 4: Simplify right side
    321,575.71x = 58,772,858,663.57
  5. Step 5: Solve for x
    x = 58,772,858,663.57/321,575.71
  6. Step 6: Final answer
    x = 182,765.23

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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.