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Finding the Fourth Proportional to 255,010.88, 351,907.94 and 140,288.96

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Solution

The fourth proportional to 255,010.88, 351,907.94 and 140,288.96 is: 193,594.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,010.88 : 351,907.94 = 140,288.96 : x
  2. Step 2: Convert to fraction form
    255,010.88/351,907.94 = 140,288.96/x
  3. Step 3: Cross multiply
    255,010.88x = 351,907.94 × 140,288.96
  4. Step 4: Simplify right side
    255,010.88x = 49,368,800,148.83
  5. Step 5: Solve for x
    x = 49,368,800,148.83/255,010.88
  6. Step 6: Final answer
    x = 193,594.88

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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.