Home / 257,255.10-385,882.83-107,413.65

Finding the Fourth Proportional to 257,255.10, 385,882.83 and 107,413.65

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Solution

The fourth proportional to 257,255.10, 385,882.83 and 107,413.65 is: 161,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,255.10 : 385,882.83 = 107,413.65 : x
  2. Step 2: Convert to fraction form
    257,255.10/385,882.83 = 107,413.65/x
  3. Step 3: Cross multiply
    257,255.10x = 385,882.83 × 107,413.65
  4. Step 4: Simplify right side
    257,255.10x = 41,449,083,242.63
  5. Step 5: Solve for x
    x = 41,449,083,242.63/257,255.10
  6. Step 6: Final answer
    x = 161,120.55

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1.5x scale

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.