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Finding the Fourth Proportional to 171,443.21, 257,263.26 and 133,897.88

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Solution

The fourth proportional to 171,443.21, 257,263.26 and 133,897.88 is: 200,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,443.21 : 257,263.26 = 133,897.88 : x
  2. Step 2: Convert to fraction form
    171,443.21/257,263.26 = 133,897.88/x
  3. Step 3: Cross multiply
    171,443.21x = 257,263.26 × 133,897.88
  4. Step 4: Simplify right side
    171,443.21x = 34,447,005,759.05
  5. Step 5: Solve for x
    x = 34,447,005,759.05/171,443.21
  6. Step 6: Final answer
    x = 200,923.72

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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.