Home / 400,976.87-553,277.74-228,816.23

Finding the Fourth Proportional to 400,976.87, 553,277.74 and 228,816.23

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Solution

The fourth proportional to 400,976.87, 553,277.74 and 228,816.23 is: 315,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,976.87 : 553,277.74 = 228,816.23 : x
  2. Step 2: Convert to fraction form
    400,976.87/553,277.74 = 228,816.23/x
  3. Step 3: Cross multiply
    400,976.87x = 553,277.74 × 228,816.23
  4. Step 4: Simplify right side
    400,976.87x = 126,598,923,700.32
  5. Step 5: Solve for x
    x = 126,598,923,700.32/400,976.87
  6. Step 6: Final answer
    x = 315,726.25

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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.