Home / 245,874.08-339,339.20-143,930.72

Finding the Fourth Proportional to 245,874.08, 339,339.20 and 143,930.72

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Solution

The fourth proportional to 245,874.08, 339,339.20 and 143,930.72 is: 198,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,874.08 : 339,339.20 = 143,930.72 : x
  2. Step 2: Convert to fraction form
    245,874.08/339,339.20 = 143,930.72/x
  3. Step 3: Cross multiply
    245,874.08x = 339,339.20 × 143,930.72
  4. Step 4: Simplify right side
    245,874.08x = 48,841,335,380.22
  5. Step 5: Solve for x
    x = 48,841,335,380.22/245,874.08
  6. Step 6: Final answer
    x = 198,643.69

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1.5x scale

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.