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Finding the Fourth Proportional to 377,698.59, 521,226.05 and 207,932.72

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Solution

The fourth proportional to 377,698.59, 521,226.05 and 207,932.72 is: 286,948.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,698.59 : 521,226.05 = 207,932.72 : x
  2. Step 2: Convert to fraction form
    377,698.59/521,226.05 = 207,932.72/x
  3. Step 3: Cross multiply
    377,698.59x = 521,226.05 × 207,932.72
  4. Step 4: Simplify right side
    377,698.59x = 108,379,946,665.56
  5. Step 5: Solve for x
    x = 108,379,946,665.56/377,698.59
  6. Step 6: Final answer
    x = 286,948.24

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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.