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Finding the Fourth Proportional to 171,622.70, 257,411.42 and 45,272.82

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Solution

The fourth proportional to 171,622.70, 257,411.42 and 45,272.82 is: 67,903.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,622.70 : 257,411.42 = 45,272.82 : x
  2. Step 2: Convert to fraction form
    171,622.70/257,411.42 = 45,272.82/x
  3. Step 3: Cross multiply
    171,622.70x = 257,411.42 × 45,272.82
  4. Step 4: Simplify right side
    171,622.70x = 11,653,741,792.31
  5. Step 5: Solve for x
    x = 11,653,741,792.31/171,622.70
  6. Step 6: Final answer
    x = 67,903.27

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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.