Home / 279,470.40-419,076.48-89,895.60

Finding the Fourth Proportional to 279,470.40, 419,076.48 and 89,895.60

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Solution

The fourth proportional to 279,470.40, 419,076.48 and 89,895.60 is: 134,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,470.40 : 419,076.48 = 89,895.60 : x
  2. Step 2: Convert to fraction form
    279,470.40/419,076.48 = 89,895.60/x
  3. Step 3: Cross multiply
    279,470.40x = 419,076.48 × 89,895.60
  4. Step 4: Simplify right side
    279,470.40x = 37,673,131,615.49
  5. Step 5: Solve for x
    x = 37,673,131,615.49/279,470.40
  6. Step 6: Final answer
    x = 134,801.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.