Home / 262,438.45-393,720.14-84,945.44

Finding the Fourth Proportional to 262,438.45, 393,720.14 and 84,945.44

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Solution

The fourth proportional to 262,438.45, 393,720.14 and 84,945.44 is: 127,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,438.45 : 393,720.14 = 84,945.44 : x
  2. Step 2: Convert to fraction form
    262,438.45/393,720.14 = 84,945.44/x
  3. Step 3: Cross multiply
    262,438.45x = 393,720.14 × 84,945.44
  4. Step 4: Simplify right side
    262,438.45x = 33,444,731,725.83
  5. Step 5: Solve for x
    x = 33,444,731,725.83/262,438.45
  6. Step 6: Final answer
    x = 127,438.38

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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.