Home / 313,621.10-432,834.20-186,297.20

Finding the Fourth Proportional to 313,621.10, 432,834.20 and 186,297.20

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Solution

The fourth proportional to 313,621.10, 432,834.20 and 186,297.20 is: 257,112.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,621.10 : 432,834.20 = 186,297.20 : x
  2. Step 2: Convert to fraction form
    313,621.10/432,834.20 = 186,297.20/x
  3. Step 3: Cross multiply
    313,621.10x = 432,834.20 × 186,297.20
  4. Step 4: Simplify right side
    313,621.10x = 80,635,799,524.24
  5. Step 5: Solve for x
    x = 80,635,799,524.24/313,621.10
  6. Step 6: Final answer
    x = 257,112.16

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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.