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Finding the Fourth Proportional to 599.55, 899.33 and 339.48

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Solution

The fourth proportional to 599.55, 899.33 and 339.48 is: 509.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.55 : 899.33 = 339.48 : x
  2. Step 2: Convert to fraction form
    599.55/899.33 = 339.48/x
  3. Step 3: Cross multiply
    599.55x = 899.33 × 339.48
  4. Step 4: Simplify right side
    599.55x = 305,302.85
  5. Step 5: Solve for x
    x = 305,302.85/599.55
  6. Step 6: Final answer
    x = 509.22

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Double scale
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Similar ratio
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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.