Home / 205,735.24-308,285.34-138,913.48

Finding the Fourth Proportional to 205,735.24, 308,285.34 and 138,913.48

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Solution

The fourth proportional to 205,735.24, 308,285.34 and 138,913.48 is: 208,155.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,735.24 : 308,285.34 = 138,913.48 : x
  2. Step 2: Convert to fraction form
    205,735.24/308,285.34 = 138,913.48/x
  3. Step 3: Cross multiply
    205,735.24x = 308,285.34 × 138,913.48
  4. Step 4: Simplify right side
    205,735.24x = 42,824,989,412.38
  5. Step 5: Solve for x
    x = 42,824,989,412.38/205,735.24
  6. Step 6: Final answer
    x = 208,155.83

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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.