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Finding the Fourth Proportional to 399,295.40, 598,797.30 and 133,064.60

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Solution

The fourth proportional to 399,295.40, 598,797.30 and 133,064.60 is: 199,548.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,295.40 : 598,797.30 = 133,064.60 : x
  2. Step 2: Convert to fraction form
    399,295.40/598,797.30 = 133,064.60/x
  3. Step 3: Cross multiply
    399,295.40x = 598,797.30 × 133,064.60
  4. Step 4: Simplify right side
    399,295.40x = 79,678,723,205.58
  5. Step 5: Solve for x
    x = 79,678,723,205.58/399,295.40
  6. Step 6: Final answer
    x = 199,548.31

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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.