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Finding the Fourth Proportional to 448,132, 618,435.12 and 246,940.96

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Solution

The fourth proportional to 448,132, 618,435.12 and 246,940.96 is: 340,785.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,132 : 618,435.12 = 246,940.96 : x
  2. Step 2: Convert to fraction form
    448,132/618,435.12 = 246,940.96/x
  3. Step 3: Cross multiply
    448,132x = 618,435.12 × 246,940.96
  4. Step 4: Simplify right side
    448,132x = 152,716,962,230.52
  5. Step 5: Solve for x
    x = 152,716,962,230.52/448,132
  6. Step 6: Final answer
    x = 340,785.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.