Home / 279,974.45-386,365.13-152,650.05

Finding the Fourth Proportional to 279,974.45, 386,365.13 and 152,650.05

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Solution

The fourth proportional to 279,974.45, 386,365.13 and 152,650.05 is: 210,657.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,974.45 : 386,365.13 = 152,650.05 : x
  2. Step 2: Convert to fraction form
    279,974.45/386,365.13 = 152,650.05/x
  3. Step 3: Cross multiply
    279,974.45x = 386,365.13 × 152,650.05
  4. Step 4: Simplify right side
    279,974.45x = 58,978,655,649.51
  5. Step 5: Solve for x
    x = 58,978,655,649.51/279,974.45
  6. Step 6: Final answer
    x = 210,657.28

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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.