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Finding the Fourth Proportional to 338,729.25, 467,445.65 and 195,489.30

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Solution

The fourth proportional to 338,729.25, 467,445.65 and 195,489.30 is: 269,774.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,729.25 : 467,445.65 = 195,489.30 : x
  2. Step 2: Convert to fraction form
    338,729.25/467,445.65 = 195,489.30/x
  3. Step 3: Cross multiply
    338,729.25x = 467,445.65 × 195,489.30
  4. Step 4: Simplify right side
    338,729.25x = 91,380,621,929.10
  5. Step 5: Solve for x
    x = 91,380,621,929.10/338,729.25
  6. Step 6: Final answer
    x = 269,774.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.