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Finding the Fourth Proportional to 254,705.76, 351,501.87 and 139,982.33

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Solution

The fourth proportional to 254,705.76, 351,501.87 and 139,982.33 is: 193,179.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,705.76 : 351,501.87 = 139,982.33 : x
  2. Step 2: Convert to fraction form
    254,705.76/351,501.87 = 139,982.33/x
  3. Step 3: Cross multiply
    254,705.76x = 351,501.87 × 139,982.33
  4. Step 4: Simplify right side
    254,705.76x = 49,204,048,479.51
  5. Step 5: Solve for x
    x = 49,204,048,479.51/254,705.76
  6. Step 6: Final answer
    x = 193,179.96

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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.