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Finding the Fourth Proportional to 242,380.91, 334,491.53 and 134,958.20

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Solution

The fourth proportional to 242,380.91, 334,491.53 and 134,958.20 is: 186,245.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,380.91 : 334,491.53 = 134,958.20 : x
  2. Step 2: Convert to fraction form
    242,380.91/334,491.53 = 134,958.20/x
  3. Step 3: Cross multiply
    242,380.91x = 334,491.53 × 134,958.20
  4. Step 4: Simplify right side
    242,380.91x = 45,142,374,804.05
  5. Step 5: Solve for x
    x = 45,142,374,804.05/242,380.91
  6. Step 6: Final answer
    x = 186,245.59

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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.