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Finding the Fourth Proportional to 425,682.68, 587,544.45 and 255,884

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Solution

The fourth proportional to 425,682.68, 587,544.45 and 255,884 is: 353,181.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,682.68 : 587,544.45 = 255,884 : x
  2. Step 2: Convert to fraction form
    425,682.68/587,544.45 = 255,884/x
  3. Step 3: Cross multiply
    425,682.68x = 587,544.45 × 255,884
  4. Step 4: Simplify right side
    425,682.68x = 150,343,224,043.80
  5. Step 5: Solve for x
    x = 150,343,224,043.80/425,682.68
  6. Step 6: Final answer
    x = 353,181.45

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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.