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Finding the Fourth Proportional to 386,016.66, 532,904.64 and 299,782.20

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Solution

The fourth proportional to 386,016.66, 532,904.64 and 299,782.20 is: 413,856.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,016.66 : 532,904.64 = 299,782.20 : x
  2. Step 2: Convert to fraction form
    386,016.66/532,904.64 = 299,782.20/x
  3. Step 3: Cross multiply
    386,016.66x = 532,904.64 × 299,782.20
  4. Step 4: Simplify right side
    386,016.66x = 159,755,325,369.41
  5. Step 5: Solve for x
    x = 159,755,325,369.41/386,016.66
  6. Step 6: Final answer
    x = 413,856.04

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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.