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Finding the Fourth Proportional to 291,759.46, 437,713 and 81,397.24

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Solution

The fourth proportional to 291,759.46, 437,713 and 81,397.24 is: 122,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,759.46 : 437,713 = 81,397.24 : x
  2. Step 2: Convert to fraction form
    291,759.46/437,713 = 81,397.24/x
  3. Step 3: Cross multiply
    291,759.46x = 437,713 × 81,397.24
  4. Step 4: Simplify right side
    291,759.46x = 35,628,630,112.12
  5. Step 5: Solve for x
    x = 35,628,630,112.12/291,759.46
  6. Step 6: Final answer
    x = 122,116.45

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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.