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Finding the Fourth Proportional to 545,222.70, 817,775.73 and 190,243.44

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Solution

The fourth proportional to 545,222.70, 817,775.73 and 190,243.44 is: 285,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,222.70 : 817,775.73 = 190,243.44 : x
  2. Step 2: Convert to fraction form
    545,222.70/817,775.73 = 190,243.44/x
  3. Step 3: Cross multiply
    545,222.70x = 817,775.73 × 190,243.44
  4. Step 4: Simplify right side
    545,222.70x = 155,576,468,023.71
  5. Step 5: Solve for x
    x = 155,576,468,023.71/545,222.70
  6. Step 6: Final answer
    x = 285,344.81

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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.