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Finding the Fourth Proportional to 323,880.66, 446,616.18 and 278,711.82

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Solution

The fourth proportional to 323,880.66, 446,616.18 and 278,711.82 is: 384,330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,880.66 : 446,616.18 = 278,711.82 : x
  2. Step 2: Convert to fraction form
    323,880.66/446,616.18 = 278,711.82/x
  3. Step 3: Cross multiply
    323,880.66x = 446,616.18 × 278,711.82
  4. Step 4: Simplify right side
    323,880.66x = 124,477,208,369.25
  5. Step 5: Solve for x
    x = 124,477,208,369.25/323,880.66
  6. Step 6: Final answer
    x = 384,330.48

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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.