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Finding the Fourth Proportional to 419,293.35, 628,932.42 and 103,750.29

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Solution

The fourth proportional to 419,293.35, 628,932.42 and 103,750.29 is: 155,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,293.35 : 628,932.42 = 103,750.29 : x
  2. Step 2: Convert to fraction form
    419,293.35/628,932.42 = 103,750.29/x
  3. Step 3: Cross multiply
    419,293.35x = 628,932.42 × 103,750.29
  4. Step 4: Simplify right side
    419,293.35x = 65,251,920,965.40
  5. Step 5: Solve for x
    x = 65,251,920,965.40/419,293.35
  6. Step 6: Final answer
    x = 155,623.55

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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.