Home / 400,844.96-553,180.56-221,996.96

Finding the Fourth Proportional to 400,844.96, 553,180.56 and 221,996.96

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Solution

The fourth proportional to 400,844.96, 553,180.56 and 221,996.96 is: 306,363.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,844.96 : 553,180.56 = 221,996.96 : x
  2. Step 2: Convert to fraction form
    400,844.96/553,180.56 = 221,996.96/x
  3. Step 3: Cross multiply
    400,844.96x = 553,180.56 × 221,996.96
  4. Step 4: Simplify right side
    400,844.96x = 122,804,402,651.10
  5. Step 5: Solve for x
    x = 122,804,402,651.10/400,844.96
  6. Step 6: Final answer
    x = 306,363.84

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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.