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Finding the Fourth Proportional to 255,608.66, 352,735.22 and 139,323.12

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Solution

The fourth proportional to 255,608.66, 352,735.22 and 139,323.12 is: 192,263.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,608.66 : 352,735.22 = 139,323.12 : x
  2. Step 2: Convert to fraction form
    255,608.66/352,735.22 = 139,323.12/x
  3. Step 3: Cross multiply
    255,608.66x = 352,735.22 × 139,323.12
  4. Step 4: Simplify right side
    255,608.66x = 49,144,171,384.29
  5. Step 5: Solve for x
    x = 49,144,171,384.29/255,608.66
  6. Step 6: Final answer
    x = 192,263.33

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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.