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Finding the Fourth Proportional to 291,057.82, 436,659.39 and 101,520.94

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Solution

The fourth proportional to 291,057.82, 436,659.39 and 101,520.94 is: 152,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,057.82 : 436,659.39 = 101,520.94 : x
  2. Step 2: Convert to fraction form
    291,057.82/436,659.39 = 101,520.94/x
  3. Step 3: Cross multiply
    291,057.82x = 436,659.39 × 101,520.94
  4. Step 4: Simplify right side
    291,057.82x = 44,330,071,732.63
  5. Step 5: Solve for x
    x = 44,330,071,732.63/291,057.82
  6. Step 6: Final answer
    x = 152,306.75

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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.