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Finding the Fourth Proportional to 345,754.68, 518,828.76 and 276,076.80

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Solution

The fourth proportional to 345,754.68, 518,828.76 and 276,076.80 is: 414,272.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,754.68 : 518,828.76 = 276,076.80 : x
  2. Step 2: Convert to fraction form
    345,754.68/518,828.76 = 276,076.80/x
  3. Step 3: Cross multiply
    345,754.68x = 518,828.76 × 276,076.80
  4. Step 4: Simplify right side
    345,754.68x = 143,236,583,808.77
  5. Step 5: Solve for x
    x = 143,236,583,808.77/345,754.68
  6. Step 6: Final answer
    x = 414,272.29

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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.