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Finding the Fourth Proportional to 196,989.64, 295,490.94 and 63,871

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Solution

The fourth proportional to 196,989.64, 295,490.94 and 63,871 is: 95,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,989.64 : 295,490.94 = 63,871 : x
  2. Step 2: Convert to fraction form
    196,989.64/295,490.94 = 63,871/x
  3. Step 3: Cross multiply
    196,989.64x = 295,490.94 × 63,871
  4. Step 4: Simplify right side
    196,989.64x = 18,873,301,828.74
  5. Step 5: Solve for x
    x = 18,873,301,828.74/196,989.64
  6. Step 6: Final answer
    x = 95,808.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.