Home / 279,947.64-386,333.10-152,628.60

Finding the Fourth Proportional to 279,947.64, 386,333.10 and 152,628.60

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Solution

The fourth proportional to 279,947.64, 386,333.10 and 152,628.60 is: 210,630.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,947.64 : 386,333.10 = 152,628.60 : x
  2. Step 2: Convert to fraction form
    279,947.64/386,333.10 = 152,628.60/x
  3. Step 3: Cross multiply
    279,947.64x = 386,333.10 × 152,628.60
  4. Step 4: Simplify right side
    279,947.64x = 58,965,480,186.66
  5. Step 5: Solve for x
    x = 58,965,480,186.66/279,947.64
  6. Step 6: Final answer
    x = 210,630.39

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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.