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Finding the Fourth Proportional to 322,076.64, 483,114.96 and 85,437.84

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Solution

The fourth proportional to 322,076.64, 483,114.96 and 85,437.84 is: 128,156.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,076.64 : 483,114.96 = 85,437.84 : x
  2. Step 2: Convert to fraction form
    322,076.64/483,114.96 = 85,437.84/x
  3. Step 3: Cross multiply
    322,076.64x = 483,114.96 × 85,437.84
  4. Step 4: Simplify right side
    322,076.64x = 41,276,298,654.09
  5. Step 5: Solve for x
    x = 41,276,298,654.09/322,076.64
  6. Step 6: Final answer
    x = 128,156.76

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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.