Home / 279,213.97-385,304.09-151,886.83

Finding the Fourth Proportional to 279,213.97, 385,304.09 and 151,886.83

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Solution

The fourth proportional to 279,213.97, 385,304.09 and 151,886.83 is: 209,597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,213.97 : 385,304.09 = 151,886.83 : x
  2. Step 2: Convert to fraction form
    279,213.97/385,304.09 = 151,886.83/x
  3. Step 3: Cross multiply
    279,213.97x = 385,304.09 × 151,886.83
  4. Step 4: Simplify right side
    279,213.97x = 58,522,616,056.70
  5. Step 5: Solve for x
    x = 58,522,616,056.70/279,213.97
  6. Step 6: Final answer
    x = 209,597.74

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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.