Home / 255,905.84-353,150.68-142,735.92

Finding the Fourth Proportional to 255,905.84, 353,150.68 and 142,735.92

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Solution

The fourth proportional to 255,905.84, 353,150.68 and 142,735.92 is: 196,975.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,905.84 : 353,150.68 = 142,735.92 : x
  2. Step 2: Convert to fraction form
    255,905.84/353,150.68 = 142,735.92/x
  3. Step 3: Cross multiply
    255,905.84x = 353,150.68 × 142,735.92
  4. Step 4: Simplify right side
    255,905.84x = 50,407,287,208.43
  5. Step 5: Solve for x
    x = 50,407,287,208.43/255,905.84
  6. Step 6: Final answer
    x = 196,975.92

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1.5x scale

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.