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Finding the Fourth Proportional to 345,446.56, 518,319.96 and 120,968.02

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Solution

The fourth proportional to 345,446.56, 518,319.96 and 120,968.02 is: 181,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,446.56 : 518,319.96 = 120,968.02 : x
  2. Step 2: Convert to fraction form
    345,446.56/518,319.96 = 120,968.02/x
  3. Step 3: Cross multiply
    345,446.56x = 518,319.96 × 120,968.02
  4. Step 4: Simplify right side
    345,446.56x = 62,700,139,287.68
  5. Step 5: Solve for x
    x = 62,700,139,287.68/345,446.56
  6. Step 6: Final answer
    x = 181,504.60

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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.