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Finding the Fourth Proportional to 379,070.62, 523,138.76 and 207,004.58

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Solution

The fourth proportional to 379,070.62, 523,138.76 and 207,004.58 is: 285,677.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,070.62 : 523,138.76 = 207,004.58 : x
  2. Step 2: Convert to fraction form
    379,070.62/523,138.76 = 207,004.58/x
  3. Step 3: Cross multiply
    379,070.62x = 523,138.76 × 207,004.58
  4. Step 4: Simplify right side
    379,070.62x = 108,292,118,260.50
  5. Step 5: Solve for x
    x = 108,292,118,260.50/379,070.62
  6. Step 6: Final answer
    x = 285,677.96

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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.