Home / 205,045.70-307,896.60-155,182.10

Finding the Fourth Proportional to 205,045.70, 307,896.60 and 155,182.10

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Solution

The fourth proportional to 205,045.70, 307,896.60 and 155,182.10 is: 233,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,045.70 : 307,896.60 = 155,182.10 : x
  2. Step 2: Convert to fraction form
    205,045.70/307,896.60 = 155,182.10/x
  3. Step 3: Cross multiply
    205,045.70x = 307,896.60 × 155,182.10
  4. Step 4: Simplify right side
    205,045.70x = 47,780,040,970.86
  5. Step 5: Solve for x
    x = 47,780,040,970.86/205,045.70
  6. Step 6: Final answer
    x = 233,021.42

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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.