Home / 400,414.16-552,588.36-221,566.16

Finding the Fourth Proportional to 400,414.16, 552,588.36 and 221,566.16

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Solution

The fourth proportional to 400,414.16, 552,588.36 and 221,566.16 is: 305,770.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,414.16 : 552,588.36 = 221,566.16 : x
  2. Step 2: Convert to fraction form
    400,414.16/552,588.36 = 221,566.16/x
  3. Step 3: Cross multiply
    400,414.16x = 552,588.36 × 221,566.16
  4. Step 4: Simplify right side
    400,414.16x = 122,434,880,985.90
  5. Step 5: Solve for x
    x = 122,434,880,985.90/400,414.16
  6. Step 6: Final answer
    x = 305,770.61

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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.