Home / 279,807.19-386,122.67-152,480.05

Finding the Fourth Proportional to 279,807.19, 386,122.67 and 152,480.05

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Solution

The fourth proportional to 279,807.19, 386,122.67 and 152,480.05 is: 210,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,807.19 : 386,122.67 = 152,480.05 : x
  2. Step 2: Convert to fraction form
    279,807.19/386,122.67 = 152,480.05/x
  3. Step 3: Cross multiply
    279,807.19x = 386,122.67 × 152,480.05
  4. Step 4: Simplify right side
    279,807.19x = 58,876,004,027.73
  5. Step 5: Solve for x
    x = 58,876,004,027.73/279,807.19
  6. Step 6: Final answer
    x = 210,416.34

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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.