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Finding the Fourth Proportional to 213,659.48, 320,492.28 and 63,864.56

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Solution

The fourth proportional to 213,659.48, 320,492.28 and 63,864.56 is: 95,797.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,659.48 : 320,492.28 = 63,864.56 : x
  2. Step 2: Convert to fraction form
    213,659.48/320,492.28 = 63,864.56/x
  3. Step 3: Cross multiply
    213,659.48x = 320,492.28 × 63,864.56
  4. Step 4: Simplify right side
    213,659.48x = 20,468,098,445.60
  5. Step 5: Solve for x
    x = 20,468,098,445.60/213,659.48
  6. Step 6: Final answer
    x = 95,797.75

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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.