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Finding the Fourth Proportional to 345,103.76, 517,287 and 246,308.24

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Solution

The fourth proportional to 345,103.76, 517,287 and 246,308.24 is: 369,199.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,103.76 : 517,287 = 246,308.24 : x
  2. Step 2: Convert to fraction form
    345,103.76/517,287 = 246,308.24/x
  3. Step 3: Cross multiply
    345,103.76x = 517,287 × 246,308.24
  4. Step 4: Simplify right side
    345,103.76x = 127,412,050,544.88
  5. Step 5: Solve for x
    x = 127,412,050,544.88/345,103.76
  6. Step 6: Final answer
    x = 369,199.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.