Home / 255,923.18-353,181.60-142,743.50

Finding the Fourth Proportional to 255,923.18, 353,181.60 and 142,743.50

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Solution

The fourth proportional to 255,923.18, 353,181.60 and 142,743.50 is: 196,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,923.18 : 353,181.60 = 142,743.50 : x
  2. Step 2: Convert to fraction form
    255,923.18/353,181.60 = 142,743.50/x
  3. Step 3: Cross multiply
    255,923.18x = 353,181.60 × 142,743.50
  4. Step 4: Simplify right side
    255,923.18x = 50,414,377,719.60
  5. Step 5: Solve for x
    x = 50,414,377,719.60/255,923.18
  6. Step 6: Final answer
    x = 196,990.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.