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Finding the Fourth Proportional to 262,174.69, 393,270.74 and 72,636.96

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Solution

The fourth proportional to 262,174.69, 393,270.74 and 72,636.96 is: 108,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,174.69 : 393,270.74 = 72,636.96 : x
  2. Step 2: Convert to fraction form
    262,174.69/393,270.74 = 72,636.96/x
  3. Step 3: Cross multiply
    262,174.69x = 393,270.74 × 72,636.96
  4. Step 4: Simplify right side
    262,174.69x = 28,565,990,647.37
  5. Step 5: Solve for x
    x = 28,565,990,647.37/262,174.69
  6. Step 6: Final answer
    x = 108,957.85

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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.