Home / 231,280.38-319,149.32-140,623.76

Finding the Fourth Proportional to 231,280.38, 319,149.32 and 140,623.76

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Solution

The fourth proportional to 231,280.38, 319,149.32 and 140,623.76 is: 194,050.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,280.38 : 319,149.32 = 140,623.76 : x
  2. Step 2: Convert to fraction form
    231,280.38/319,149.32 = 140,623.76/x
  3. Step 3: Cross multiply
    231,280.38x = 319,149.32 × 140,623.76
  4. Step 4: Simplify right side
    231,280.38x = 44,879,977,474.60
  5. Step 5: Solve for x
    x = 44,879,977,474.60/231,280.38
  6. Step 6: Final answer
    x = 194,050.09

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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.