Home / 331,671.08-457,780.02-210,788.84

Finding the Fourth Proportional to 331,671.08, 457,780.02 and 210,788.84

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Solution

The fourth proportional to 331,671.08, 457,780.02 and 210,788.84 is: 290,935.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,671.08 : 457,780.02 = 210,788.84 : x
  2. Step 2: Convert to fraction form
    331,671.08/457,780.02 = 210,788.84/x
  3. Step 3: Cross multiply
    331,671.08x = 457,780.02 × 210,788.84
  4. Step 4: Simplify right side
    331,671.08x = 96,494,919,390.98
  5. Step 5: Solve for x
    x = 96,494,919,390.98/331,671.08
  6. Step 6: Final answer
    x = 290,935.58

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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.