Home / 330,136.96-454,568.89-257,831.92

Finding the Fourth Proportional to 330,136.96, 454,568.89 and 257,831.92

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Solution

The fourth proportional to 330,136.96, 454,568.89 and 257,831.92 is: 355,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,136.96 : 454,568.89 = 257,831.92 : x
  2. Step 2: Convert to fraction form
    330,136.96/454,568.89 = 257,831.92/x
  3. Step 3: Cross multiply
    330,136.96x = 454,568.89 × 257,831.92
  4. Step 4: Simplify right side
    330,136.96x = 117,202,370,817.92
  5. Step 5: Solve for x
    x = 117,202,370,817.92/330,136.96
  6. Step 6: Final answer
    x = 355,011.36

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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.