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Finding the Fourth Proportional to 270,443.46, 405,688.27 and 70,763.67

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Solution

The fourth proportional to 270,443.46, 405,688.27 and 70,763.67 is: 106,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,443.46 : 405,688.27 = 70,763.67 : x
  2. Step 2: Convert to fraction form
    270,443.46/405,688.27 = 70,763.67/x
  3. Step 3: Cross multiply
    270,443.46x = 405,688.27 × 70,763.67
  4. Step 4: Simplify right side
    270,443.46x = 28,707,991,698.46
  5. Step 5: Solve for x
    x = 28,707,991,698.46/270,443.46
  6. Step 6: Final answer
    x = 106,151.55

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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.