Home / 279,974.64-386,364.66-152,650.20

Finding the Fourth Proportional to 279,974.64, 386,364.66 and 152,650.20

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Solution

The fourth proportional to 279,974.64, 386,364.66 and 152,650.20 is: 210,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,974.64 : 386,364.66 = 152,650.20 : x
  2. Step 2: Convert to fraction form
    279,974.64/386,364.66 = 152,650.20/x
  3. Step 3: Cross multiply
    279,974.64x = 386,364.66 × 152,650.20
  4. Step 4: Simplify right side
    279,974.64x = 58,978,642,621.93
  5. Step 5: Solve for x
    x = 58,978,642,621.93/279,974.64
  6. Step 6: Final answer
    x = 210,657.09

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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.