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Finding the Fourth Proportional to 286,442.69, 429,664.22 and 108,908.69

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Solution

The fourth proportional to 286,442.69, 429,664.22 and 108,908.69 is: 163,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,442.69 : 429,664.22 = 108,908.69 : x
  2. Step 2: Convert to fraction form
    286,442.69/429,664.22 = 108,908.69/x
  3. Step 3: Cross multiply
    286,442.69x = 429,664.22 × 108,908.69
  4. Step 4: Simplify right side
    286,442.69x = 46,794,166,795.53
  5. Step 5: Solve for x
    x = 46,794,166,795.53/286,442.69
  6. Step 6: Final answer
    x = 163,363.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.