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Finding the Fourth Proportional to 243,539.76, 364,719.12 and 168,449.16

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Solution

The fourth proportional to 243,539.76, 364,719.12 and 168,449.16 is: 252,265.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,539.76 : 364,719.12 = 168,449.16 : x
  2. Step 2: Convert to fraction form
    243,539.76/364,719.12 = 168,449.16/x
  3. Step 3: Cross multiply
    243,539.76x = 364,719.12 × 168,449.16
  4. Step 4: Simplify right side
    243,539.76x = 61,436,629,399.94
  5. Step 5: Solve for x
    x = 61,436,629,399.94/243,539.76
  6. Step 6: Final answer
    x = 252,265.29

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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.