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Finding the Fourth Proportional to 223,155.90, 334,736.56 and 65,387.54

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Solution

The fourth proportional to 223,155.90, 334,736.56 and 65,387.54 is: 98,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,155.90 : 334,736.56 = 65,387.54 : x
  2. Step 2: Convert to fraction form
    223,155.90/334,736.56 = 65,387.54/x
  3. Step 3: Cross multiply
    223,155.90x = 334,736.56 × 65,387.54
  4. Step 4: Simplify right side
    223,155.90x = 21,887,600,206.46
  5. Step 5: Solve for x
    x = 21,887,600,206.46/223,155.90
  6. Step 6: Final answer
    x = 98,082.10

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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.