Home / 279,843.06-386,172.18-152,515.92

Finding the Fourth Proportional to 279,843.06, 386,172.18 and 152,515.92

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Solution

The fourth proportional to 279,843.06, 386,172.18 and 152,515.92 is: 210,465.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,843.06 : 386,172.18 = 152,515.92 : x
  2. Step 2: Convert to fraction form
    279,843.06/386,172.18 = 152,515.92/x
  3. Step 3: Cross multiply
    279,843.06x = 386,172.18 × 152,515.92
  4. Step 4: Simplify right side
    279,843.06x = 58,897,405,311.11
  5. Step 5: Solve for x
    x = 58,897,405,311.11/279,843.06
  6. Step 6: Final answer
    x = 210,465.84

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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.