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Finding the Fourth Proportional to 378,940.86, 523,026.04 and 249,902.60

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Solution

The fourth proportional to 378,940.86, 523,026.04 and 249,902.60 is: 344,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,940.86 : 523,026.04 = 249,902.60 : x
  2. Step 2: Convert to fraction form
    378,940.86/523,026.04 = 249,902.60/x
  3. Step 3: Cross multiply
    378,940.86x = 523,026.04 × 249,902.60
  4. Step 4: Simplify right side
    378,940.86x = 130,705,567,263.70
  5. Step 5: Solve for x
    x = 130,705,567,263.70/378,940.86
  6. Step 6: Final answer
    x = 344,923.39

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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.