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Finding the Fourth Proportional to 171,868.80, 257,803.20 and 162,027.30

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Solution

The fourth proportional to 171,868.80, 257,803.20 and 162,027.30 is: 243,040.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,868.80 : 257,803.20 = 162,027.30 : x
  2. Step 2: Convert to fraction form
    171,868.80/257,803.20 = 162,027.30/x
  3. Step 3: Cross multiply
    171,868.80x = 257,803.20 × 162,027.30
  4. Step 4: Simplify right side
    171,868.80x = 41,771,156,427.36
  5. Step 5: Solve for x
    x = 41,771,156,427.36/171,868.80
  6. Step 6: Final answer
    x = 243,040.95

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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.