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Finding the Fourth Proportional to 196,988.64, 295,489.44 and 63,870

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Solution

The fourth proportional to 196,988.64, 295,489.44 and 63,870 is: 95,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,988.64 : 295,489.44 = 63,870 : x
  2. Step 2: Convert to fraction form
    196,988.64/295,489.44 = 63,870/x
  3. Step 3: Cross multiply
    196,988.64x = 295,489.44 × 63,870
  4. Step 4: Simplify right side
    196,988.64x = 18,872,910,532.80
  5. Step 5: Solve for x
    x = 18,872,910,532.80/196,988.64
  6. Step 6: Final answer
    x = 95,807.10

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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.