Home / 230,388.48-317,922.83-128,410.56

Finding the Fourth Proportional to 230,388.48, 317,922.83 and 128,410.56

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Solution

The fourth proportional to 230,388.48, 317,922.83 and 128,410.56 is: 177,199.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,388.48 : 317,922.83 = 128,410.56 : x
  2. Step 2: Convert to fraction form
    230,388.48/317,922.83 = 128,410.56/x
  3. Step 3: Cross multiply
    230,388.48x = 317,922.83 × 128,410.56
  4. Step 4: Simplify right side
    230,388.48x = 40,824,648,637.08
  5. Step 5: Solve for x
    x = 40,824,648,637.08/230,388.48
  6. Step 6: Final answer
    x = 177,199.18

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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.