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Finding the Fourth Proportional to 255,031.99, 351,930.05 and 141,847.45

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Solution

The fourth proportional to 255,031.99, 351,930.05 and 141,847.45 is: 195,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,031.99 : 351,930.05 = 141,847.45 : x
  2. Step 2: Convert to fraction form
    255,031.99/351,930.05 = 141,847.45/x
  3. Step 3: Cross multiply
    255,031.99x = 351,930.05 × 141,847.45
  4. Step 4: Simplify right side
    255,031.99x = 49,920,380,170.87
  5. Step 5: Solve for x
    x = 49,920,380,170.87/255,031.99
  6. Step 6: Final answer
    x = 195,741.64

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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.