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Finding the Fourth Proportional to 171,454.20, 257,181.30 and 163,289.40

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Solution

The fourth proportional to 171,454.20, 257,181.30 and 163,289.40 is: 244,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,454.20 : 257,181.30 = 163,289.40 : x
  2. Step 2: Convert to fraction form
    171,454.20/257,181.30 = 163,289.40/x
  3. Step 3: Cross multiply
    171,454.20x = 257,181.30 × 163,289.40
  4. Step 4: Simplify right side
    171,454.20x = 41,994,980,168.22
  5. Step 5: Solve for x
    x = 41,994,980,168.22/171,454.20
  6. Step 6: Final answer
    x = 244,934.10

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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.