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Finding the Fourth Proportional to 395,321.07, 593,225.61 and 155,393.00

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Solution

The fourth proportional to 395,321.07, 593,225.61 and 155,393.00 is: 233,185.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,321.07 : 593,225.61 = 155,393.00 : x
  2. Step 2: Convert to fraction form
    395,321.07/593,225.61 = 155,393.00/x
  3. Step 3: Cross multiply
    395,321.07x = 593,225.61 × 155,393.00
  4. Step 4: Simplify right side
    395,321.07x = 92,183,105,890.47
  5. Step 5: Solve for x
    x = 92,183,105,890.47/395,321.07
  6. Step 6: Final answer
    x = 233,185.41

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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.