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Finding the Fourth Proportional to 313,765.38, 432,999.09 and 170,525.79

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Solution

The fourth proportional to 313,765.38, 432,999.09 and 170,525.79 is: 235,327.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,765.38 : 432,999.09 = 170,525.79 : x
  2. Step 2: Convert to fraction form
    313,765.38/432,999.09 = 170,525.79/x
  3. Step 3: Cross multiply
    313,765.38x = 432,999.09 × 170,525.79
  4. Step 4: Simplify right side
    313,765.38x = 73,837,511,891.53
  5. Step 5: Solve for x
    x = 73,837,511,891.53/313,765.38
  6. Step 6: Final answer
    x = 235,327.15

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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.