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Finding the Fourth Proportional to 324,395.64, 486,249 and 191,338.56

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Solution

The fourth proportional to 324,395.64, 486,249 and 191,338.56 is: 286,804.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,395.64 : 486,249 = 191,338.56 : x
  2. Step 2: Convert to fraction form
    324,395.64/486,249 = 191,338.56/x
  3. Step 3: Cross multiply
    324,395.64x = 486,249 × 191,338.56
  4. Step 4: Simplify right side
    324,395.64x = 93,038,183,461.44
  5. Step 5: Solve for x
    x = 93,038,183,461.44/324,395.64
  6. Step 6: Final answer
    x = 286,804.67

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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.