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Finding the Fourth Proportional to 254,995.55, 351,891.91 and 140,271.72

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Solution

The fourth proportional to 254,995.55, 351,891.91 and 140,271.72 is: 193,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,995.55 : 351,891.91 = 140,271.72 : x
  2. Step 2: Convert to fraction form
    254,995.55/351,891.91 = 140,271.72/x
  3. Step 3: Cross multiply
    254,995.55x = 351,891.91 × 140,271.72
  4. Step 4: Simplify right side
    254,995.55x = 49,360,483,469.79
  5. Step 5: Solve for x
    x = 49,360,483,469.79/254,995.55
  6. Step 6: Final answer
    x = 193,573.90

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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.