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Finding the Fourth Proportional to 171,682.20, 257,450.40 and 82,962.90

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Solution

The fourth proportional to 171,682.20, 257,450.40 and 82,962.90 is: 124,409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,682.20 : 257,450.40 = 82,962.90 : x
  2. Step 2: Convert to fraction form
    171,682.20/257,450.40 = 82,962.90/x
  3. Step 3: Cross multiply
    171,682.20x = 257,450.40 × 82,962.90
  4. Step 4: Simplify right side
    171,682.20x = 21,358,831,790.16
  5. Step 5: Solve for x
    x = 21,358,831,790.16/171,682.20
  6. Step 6: Final answer
    x = 124,409.12

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1.5x scale

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.