Home / 171,460.20-257,190.30-147,840.60

Finding the Fourth Proportional to 171,460.20, 257,190.30 and 147,840.60

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Solution

The fourth proportional to 171,460.20, 257,190.30 and 147,840.60 is: 221,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,460.20 : 257,190.30 = 147,840.60 : x
  2. Step 2: Convert to fraction form
    171,460.20/257,190.30 = 147,840.60/x
  3. Step 3: Cross multiply
    171,460.20x = 257,190.30 × 147,840.60
  4. Step 4: Simplify right side
    171,460.20x = 38,023,168,266.18
  5. Step 5: Solve for x
    x = 38,023,168,266.18/171,460.20
  6. Step 6: Final answer
    x = 221,760.90

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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.