Home / 377,930.61-521,544.21-208,164.72

Finding the Fourth Proportional to 377,930.61, 521,544.21 and 208,164.72

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Solution

The fourth proportional to 377,930.61, 521,544.21 and 208,164.72 is: 287,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,930.61 : 521,544.21 = 208,164.72 : x
  2. Step 2: Convert to fraction form
    377,930.61/521,544.21 = 208,164.72/x
  3. Step 3: Cross multiply
    377,930.61x = 521,544.21 × 208,164.72
  4. Step 4: Simplify right side
    377,930.61x = 108,567,104,442.27
  5. Step 5: Solve for x
    x = 108,567,104,442.27/377,930.61
  6. Step 6: Final answer
    x = 287,267.30

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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.