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Finding the Fourth Proportional to 171,870.80, 257,806.20 and 162,029.30

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Solution

The fourth proportional to 171,870.80, 257,806.20 and 162,029.30 is: 243,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,870.80 : 257,806.20 = 162,029.30 : x
  2. Step 2: Convert to fraction form
    171,870.80/257,806.20 = 162,029.30/x
  3. Step 3: Cross multiply
    171,870.80x = 257,806.20 × 162,029.30
  4. Step 4: Simplify right side
    171,870.80x = 41,772,158,121.66
  5. Step 5: Solve for x
    x = 41,772,158,121.66/171,870.80
  6. Step 6: Final answer
    x = 243,043.95

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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.