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Finding the Fourth Proportional to 171,081.20, 257,059.20 and 151,835.60

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Solution

The fourth proportional to 171,081.20, 257,059.20 and 151,835.60 is: 228,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,081.20 : 257,059.20 = 151,835.60 : x
  2. Step 2: Convert to fraction form
    171,081.20/257,059.20 = 151,835.60/x
  3. Step 3: Cross multiply
    171,081.20x = 257,059.20 × 151,835.60
  4. Step 4: Simplify right side
    171,081.20x = 39,030,737,867.52
  5. Step 5: Solve for x
    x = 39,030,737,867.52/171,081.20
  6. Step 6: Final answer
    x = 228,141.60

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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.