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Finding the Fourth Proportional to 400,924.80, 553,276.80 and 222,076.80

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Solution

The fourth proportional to 400,924.80, 553,276.80 and 222,076.80 is: 306,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,924.80 : 553,276.80 = 222,076.80 : x
  2. Step 2: Convert to fraction form
    400,924.80/553,276.80 = 222,076.80/x
  3. Step 3: Cross multiply
    400,924.80x = 553,276.80 × 222,076.80
  4. Step 4: Simplify right side
    400,924.80x = 122,869,941,258.24
  5. Step 5: Solve for x
    x = 122,869,941,258.24/400,924.80
  6. Step 6: Final answer
    x = 306,466.30

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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.