Home / 279,399.72-385,571.54-152,076.18

Finding the Fourth Proportional to 279,399.72, 385,571.54 and 152,076.18

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Solution

The fourth proportional to 279,399.72, 385,571.54 and 152,076.18 is: 209,865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,399.72 : 385,571.54 = 152,076.18 : x
  2. Step 2: Convert to fraction form
    279,399.72/385,571.54 = 152,076.18/x
  3. Step 3: Cross multiply
    279,399.72x = 385,571.54 × 152,076.18
  4. Step 4: Simplify right side
    279,399.72x = 58,636,246,919.92
  5. Step 5: Solve for x
    x = 58,636,246,919.92/279,399.72
  6. Step 6: Final answer
    x = 209,865.09

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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.