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Finding the Fourth Proportional to 321,883.60, 482,825.40 and 188,827.60

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Solution

The fourth proportional to 321,883.60, 482,825.40 and 188,827.60 is: 283,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,883.60 : 482,825.40 = 188,827.60 : x
  2. Step 2: Convert to fraction form
    321,883.60/482,825.40 = 188,827.60/x
  3. Step 3: Cross multiply
    321,883.60x = 482,825.40 × 188,827.60
  4. Step 4: Simplify right side
    321,883.60x = 91,170,761,501.04
  5. Step 5: Solve for x
    x = 91,170,761,501.04/321,883.60
  6. Step 6: Final answer
    x = 283,241.40

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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.