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Finding the Fourth Proportional to 400,880.88, 553,224.54 and 228,795.39

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Solution

The fourth proportional to 400,880.88, 553,224.54 and 228,795.39 is: 315,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,880.88 : 553,224.54 = 228,795.39 : x
  2. Step 2: Convert to fraction form
    400,880.88/553,224.54 = 228,795.39/x
  3. Step 3: Cross multiply
    400,880.88x = 553,224.54 × 228,795.39
  4. Step 4: Simplify right side
    400,880.88x = 126,575,224,386.87
  5. Step 5: Solve for x
    x = 126,575,224,386.87/400,880.88
  6. Step 6: Final answer
    x = 315,742.73

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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.