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Finding the Fourth Proportional to 211,732, 317,598 and 63,988

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Solution

The fourth proportional to 211,732, 317,598 and 63,988 is: 95,982

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,732 : 317,598 = 63,988 : x
  2. Step 2: Convert to fraction form
    211,732/317,598 = 63,988/x
  3. Step 3: Cross multiply
    211,732x = 317,598 × 63,988
  4. Step 4: Simplify right side
    211,732x = 20,322,460,824
  5. Step 5: Solve for x
    x = 20,322,460,824/211,732
  6. Step 6: Final answer
    x = 95,982

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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.