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Finding the Fourth Proportional to 351,821.16, 485,597.70 and 201,005.64

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Solution

The fourth proportional to 351,821.16, 485,597.70 and 201,005.64 is: 277,436.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,821.16 : 485,597.70 = 201,005.64 : x
  2. Step 2: Convert to fraction form
    351,821.16/485,597.70 = 201,005.64/x
  3. Step 3: Cross multiply
    351,821.16x = 485,597.70 × 201,005.64
  4. Step 4: Simplify right side
    351,821.16x = 97,607,876,471.03
  5. Step 5: Solve for x
    x = 97,607,876,471.03/351,821.16
  6. Step 6: Final answer
    x = 277,436.06

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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.