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Finding the Fourth Proportional to 211,454, 317,181 and 63,710

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Solution

The fourth proportional to 211,454, 317,181 and 63,710 is: 95,565

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,454 : 317,181 = 63,710 : x
  2. Step 2: Convert to fraction form
    211,454/317,181 = 63,710/x
  3. Step 3: Cross multiply
    211,454x = 317,181 × 63,710
  4. Step 4: Simplify right side
    211,454x = 20,207,601,510
  5. Step 5: Solve for x
    x = 20,207,601,510/211,454
  6. Step 6: Final answer
    x = 95,565

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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.