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Finding the Fourth Proportional to 230,579.67, 345,880.11 and 70,644.15

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Solution

The fourth proportional to 230,579.67, 345,880.11 and 70,644.15 is: 105,969.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,579.67 : 345,880.11 = 70,644.15 : x
  2. Step 2: Convert to fraction form
    230,579.67/345,880.11 = 70,644.15/x
  3. Step 3: Cross multiply
    230,579.67x = 345,880.11 × 70,644.15
  4. Step 4: Simplify right side
    230,579.67x = 24,434,406,372.86
  5. Step 5: Solve for x
    x = 24,434,406,372.86/230,579.67
  6. Step 6: Final answer
    x = 105,969.47

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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.