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Finding the Fourth Proportional to 289,560.49, 399,608.23 and 167,007.30

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Solution

The fourth proportional to 289,560.49, 399,608.23 and 167,007.30 is: 230,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,560.49 : 399,608.23 = 167,007.30 : x
  2. Step 2: Convert to fraction form
    289,560.49/399,608.23 = 167,007.30/x
  3. Step 3: Cross multiply
    289,560.49x = 399,608.23 × 167,007.30
  4. Step 4: Simplify right side
    289,560.49x = 66,737,491,550.08
  5. Step 5: Solve for x
    x = 66,737,491,550.08/289,560.49
  6. Step 6: Final answer
    x = 230,478.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.