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Finding the Fourth Proportional to 599.69, 899.72 and 339.61

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Solution

The fourth proportional to 599.69, 899.72 and 339.61 is: 509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.69 : 899.72 = 339.61 : x
  2. Step 2: Convert to fraction form
    599.69/899.72 = 339.61/x
  3. Step 3: Cross multiply
    599.69x = 899.72 × 339.61
  4. Step 4: Simplify right side
    599.69x = 305,553.91
  5. Step 5: Solve for x
    x = 305,553.91/599.69
  6. Step 6: Final answer
    x = 509.52

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1.5x scale

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.