Home / 400,991.87-553,298.44-228,831.23

Finding the Fourth Proportional to 400,991.87, 553,298.44 and 228,831.23

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Solution

The fourth proportional to 400,991.87, 553,298.44 and 228,831.23 is: 315,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,991.87 : 553,298.44 = 228,831.23 : x
  2. Step 2: Convert to fraction form
    400,991.87/553,298.44 = 228,831.23/x
  3. Step 3: Cross multiply
    400,991.87x = 553,298.44 × 228,831.23
  4. Step 4: Simplify right side
    400,991.87x = 126,611,962,582.28
  5. Step 5: Solve for x
    x = 126,611,962,582.28/400,991.87
  6. Step 6: Final answer
    x = 315,746.96

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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.