Home / 386,067.60-578,831.40-228,214.80

Finding the Fourth Proportional to 386,067.60, 578,831.40 and 228,214.80

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Solution

The fourth proportional to 386,067.60, 578,831.40 and 228,214.80 is: 342,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,067.60 : 578,831.40 = 228,214.80 : x
  2. Step 2: Convert to fraction form
    386,067.60/578,831.40 = 228,214.80/x
  3. Step 3: Cross multiply
    386,067.60x = 578,831.40 × 228,214.80
  4. Step 4: Simplify right side
    386,067.60x = 132,097,892,184.72
  5. Step 5: Solve for x
    x = 132,097,892,184.72/386,067.60
  6. Step 6: Final answer
    x = 342,162.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.