Home / 377,869.68-521,455.92-208,100.16

Finding the Fourth Proportional to 377,869.68, 521,455.92 and 208,100.16

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Solution

The fourth proportional to 377,869.68, 521,455.92 and 208,100.16 is: 287,175.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,869.68 : 521,455.92 = 208,100.16 : x
  2. Step 2: Convert to fraction form
    377,869.68/521,455.92 = 208,100.16/x
  3. Step 3: Cross multiply
    377,869.68x = 521,455.92 × 208,100.16
  4. Step 4: Simplify right side
    377,869.68x = 108,515,060,384.95
  5. Step 5: Solve for x
    x = 108,515,060,384.95/377,869.68
  6. Step 6: Final answer
    x = 287,175.89

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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.