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Finding the Fourth Proportional to 399,993.54, 599,990.89 and 163,336.22

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Solution

The fourth proportional to 399,993.54, 599,990.89 and 163,336.22 is: 245,004.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,993.54 : 599,990.89 = 163,336.22 : x
  2. Step 2: Convert to fraction form
    399,993.54/599,990.89 = 163,336.22/x
  3. Step 3: Cross multiply
    399,993.54x = 599,990.89 × 163,336.22
  4. Step 4: Simplify right side
    399,993.54x = 98,000,246,193.61
  5. Step 5: Solve for x
    x = 98,000,246,193.61/399,993.54
  6. Step 6: Final answer
    x = 245,004.57

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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.