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Finding the Fourth Proportional to 400,884.80, 553,229.96 and 228,799.32

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Solution

The fourth proportional to 400,884.80, 553,229.96 and 228,799.32 is: 315,748.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,884.80 : 553,229.96 = 228,799.32 : x
  2. Step 2: Convert to fraction form
    400,884.80/553,229.96 = 228,799.32/x
  3. Step 3: Cross multiply
    400,884.80x = 553,229.96 × 228,799.32
  4. Step 4: Simplify right side
    400,884.80x = 126,578,638,651.63
  5. Step 5: Solve for x
    x = 126,578,638,651.63/400,884.80
  6. Step 6: Final answer
    x = 315,748.16

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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.