Home / 664,028.80-995,438.40-243,203.20

Finding the Fourth Proportional to 664,028.80, 995,438.40 and 243,203.20

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Solution

The fourth proportional to 664,028.80, 995,438.40 and 243,203.20 is: 364,583.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,028.80 : 995,438.40 = 243,203.20 : x
  2. Step 2: Convert to fraction form
    664,028.80/995,438.40 = 243,203.20/x
  3. Step 3: Cross multiply
    664,028.80x = 995,438.40 × 243,203.20
  4. Step 4: Simplify right side
    664,028.80x = 242,093,804,282.88
  5. Step 5: Solve for x
    x = 242,093,804,282.88/664,028.80
  6. Step 6: Final answer
    x = 364,583.29

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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.