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Finding the Fourth Proportional to 255,064.88, 351,987.88 and 140,350.52

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Solution

The fourth proportional to 255,064.88, 351,987.88 and 140,350.52 is: 193,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,064.88 : 351,987.88 = 140,350.52 : x
  2. Step 2: Convert to fraction form
    255,064.88/351,987.88 = 140,350.52/x
  3. Step 3: Cross multiply
    255,064.88x = 351,987.88 × 140,350.52
  4. Step 4: Simplify right side
    255,064.88x = 49,401,681,991.70
  5. Step 5: Solve for x
    x = 49,401,681,991.70/255,064.88
  6. Step 6: Final answer
    x = 193,682.81

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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.