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Finding the Fourth Proportional to 463,148.64, 639,145.11 and 251,180.64

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Solution

The fourth proportional to 463,148.64, 639,145.11 and 251,180.64 is: 346,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,148.64 : 639,145.11 = 251,180.64 : x
  2. Step 2: Convert to fraction form
    463,148.64/639,145.11 = 251,180.64/x
  3. Step 3: Cross multiply
    463,148.64x = 639,145.11 × 251,180.64
  4. Step 4: Simplify right side
    463,148.64x = 160,540,877,782.67
  5. Step 5: Solve for x
    x = 160,540,877,782.67/463,148.64
  6. Step 6: Final answer
    x = 346,629.28

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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.