Home / 371,285.21-557,008.77-211,436.66

Finding the Fourth Proportional to 371,285.21, 557,008.77 and 211,436.66

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Solution

The fourth proportional to 371,285.21, 557,008.77 and 211,436.66 is: 317,201.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,285.21 : 557,008.77 = 211,436.66 : x
  2. Step 2: Convert to fraction form
    371,285.21/557,008.77 = 211,436.66/x
  3. Step 3: Cross multiply
    371,285.21x = 557,008.77 × 211,436.66
  4. Step 4: Simplify right side
    371,285.21x = 117,772,073,919.51
  5. Step 5: Solve for x
    x = 117,772,073,919.51/371,285.21
  6. Step 6: Final answer
    x = 317,201.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.