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Finding the Fourth Proportional to 291,444.80, 437,080.80 and 113,849.60

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Solution

The fourth proportional to 291,444.80, 437,080.80 and 113,849.60 is: 170,740.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,444.80 : 437,080.80 = 113,849.60 : x
  2. Step 2: Convert to fraction form
    291,444.80/437,080.80 = 113,849.60/x
  3. Step 3: Cross multiply
    291,444.80x = 437,080.80 × 113,849.60
  4. Step 4: Simplify right side
    291,444.80x = 49,761,474,247.68
  5. Step 5: Solve for x
    x = 49,761,474,247.68/291,444.80
  6. Step 6: Final answer
    x = 170,740.65

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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.