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Finding the Fourth Proportional to 377,886.75, 521,464.41 and 208,088.07

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Solution

The fourth proportional to 377,886.75, 521,464.41 and 208,088.07 is: 287,150.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,886.75 : 521,464.41 = 208,088.07 : x
  2. Step 2: Convert to fraction form
    377,886.75/521,464.41 = 208,088.07/x
  3. Step 3: Cross multiply
    377,886.75x = 521,464.41 × 208,088.07
  4. Step 4: Simplify right side
    377,886.75x = 108,510,522,650.59
  5. Step 5: Solve for x
    x = 108,510,522,650.59/377,886.75
  6. Step 6: Final answer
    x = 287,150.91

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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.