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Finding the Fourth Proportional to 351,705.54, 485,342.34 and 200,802.54

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Solution

The fourth proportional to 351,705.54, 485,342.34 and 200,802.54 is: 277,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,705.54 : 485,342.34 = 200,802.54 : x
  2. Step 2: Convert to fraction form
    351,705.54/485,342.34 = 200,802.54/x
  3. Step 3: Cross multiply
    351,705.54x = 485,342.34 × 200,802.54
  4. Step 4: Simplify right side
    351,705.54x = 97,457,974,641.54
  5. Step 5: Solve for x
    x = 97,457,974,641.54/351,705.54
  6. Step 6: Final answer
    x = 277,101.05

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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.