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Finding the Fourth Proportional to 313,759.70, 432,991.72 and 170,519.73

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Solution

The fourth proportional to 313,759.70, 432,991.72 and 170,519.73 is: 235,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,759.70 : 432,991.72 = 170,519.73 : x
  2. Step 2: Convert to fraction form
    313,759.70/432,991.72 = 170,519.73/x
  3. Step 3: Cross multiply
    313,759.70x = 432,991.72 × 170,519.73
  4. Step 4: Simplify right side
    313,759.70x = 73,833,631,186.64
  5. Step 5: Solve for x
    x = 73,833,631,186.64/313,759.70
  6. Step 6: Final answer
    x = 235,319.04

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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.