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Finding the Fourth Proportional to 251,052.60, 376,460.10 and 145,903.80

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Solution

The fourth proportional to 251,052.60, 376,460.10 and 145,903.80 is: 218,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,052.60 : 376,460.10 = 145,903.80 : x
  2. Step 2: Convert to fraction form
    251,052.60/376,460.10 = 145,903.80/x
  3. Step 3: Cross multiply
    251,052.60x = 376,460.10 × 145,903.80
  4. Step 4: Simplify right side
    251,052.60x = 54,926,959,138.38
  5. Step 5: Solve for x
    x = 54,926,959,138.38/251,052.60
  6. Step 6: Final answer
    x = 218,786.66

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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.