Home / 215,837.94-297,878.50-129,824.58

Finding the Fourth Proportional to 215,837.94, 297,878.50 and 129,824.58

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Solution

The fourth proportional to 215,837.94, 297,878.50 and 129,824.58 is: 179,171.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,837.94 : 297,878.50 = 129,824.58 : x
  2. Step 2: Convert to fraction form
    215,837.94/297,878.50 = 129,824.58/x
  3. Step 3: Cross multiply
    215,837.94x = 297,878.50 × 129,824.58
  4. Step 4: Simplify right side
    215,837.94x = 38,671,951,153.53
  5. Step 5: Solve for x
    x = 38,671,951,153.53/215,837.94
  6. Step 6: Final answer
    x = 179,171.24

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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.