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Finding the Fourth Proportional to 215,256.12, 322,933.32 and 65,517.63

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Solution

The fourth proportional to 215,256.12, 322,933.32 and 65,517.63 is: 98,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,256.12 : 322,933.32 = 65,517.63 : x
  2. Step 2: Convert to fraction form
    215,256.12/322,933.32 = 65,517.63/x
  3. Step 3: Cross multiply
    215,256.12x = 322,933.32 × 65,517.63
  4. Step 4: Simplify right side
    215,256.12x = 21,157,825,774.43
  5. Step 5: Solve for x
    x = 21,157,825,774.43/215,256.12
  6. Step 6: Final answer
    x = 98,291.40

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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.