Home / 313,637.72-432,841.46-177,672.78

Finding the Fourth Proportional to 313,637.72, 432,841.46 and 177,672.78

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Solution

The fourth proportional to 313,637.72, 432,841.46 and 177,672.78 is: 245,200.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,637.72 : 432,841.46 = 177,672.78 : x
  2. Step 2: Convert to fraction form
    313,637.72/432,841.46 = 177,672.78/x
  3. Step 3: Cross multiply
    313,637.72x = 432,841.46 × 177,672.78
  4. Step 4: Simplify right side
    313,637.72x = 76,904,144,609.09
  5. Step 5: Solve for x
    x = 76,904,144,609.09/313,637.72
  6. Step 6: Final answer
    x = 245,200.56

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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.