Home / 330,729.72-496,083.60-143,741.40

Finding the Fourth Proportional to 330,729.72, 496,083.60 and 143,741.40

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Solution

The fourth proportional to 330,729.72, 496,083.60 and 143,741.40 is: 215,607.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,729.72 : 496,083.60 = 143,741.40 : x
  2. Step 2: Convert to fraction form
    330,729.72/496,083.60 = 143,741.40/x
  3. Step 3: Cross multiply
    330,729.72x = 496,083.60 × 143,741.40
  4. Step 4: Simplify right side
    330,729.72x = 71,307,751,181.04
  5. Step 5: Solve for x
    x = 71,307,751,181.04/330,729.72
  6. Step 6: Final answer
    x = 215,607.33

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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.