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Finding the Fourth Proportional to 513,450, 770,277.60 and 158,450.67

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Solution

The fourth proportional to 513,450, 770,277.60 and 158,450.67 is: 237,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,450 : 770,277.60 = 158,450.67 : x
  2. Step 2: Convert to fraction form
    513,450/770,277.60 = 158,450.67/x
  3. Step 3: Cross multiply
    513,450x = 770,277.60 × 158,450.67
  4. Step 4: Simplify right side
    513,450x = 122,051,001,805.99
  5. Step 5: Solve for x
    x = 122,051,001,805.99/513,450
  6. Step 6: Final answer
    x = 237,707.67

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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.