Home / 213,544.80-320,317.20-135,007.20

Finding the Fourth Proportional to 213,544.80, 320,317.20 and 135,007.20

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Solution

The fourth proportional to 213,544.80, 320,317.20 and 135,007.20 is: 202,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,544.80 : 320,317.20 = 135,007.20 : x
  2. Step 2: Convert to fraction form
    213,544.80/320,317.20 = 135,007.20/x
  3. Step 3: Cross multiply
    213,544.80x = 320,317.20 × 135,007.20
  4. Step 4: Simplify right side
    213,544.80x = 43,245,128,283.84
  5. Step 5: Solve for x
    x = 43,245,128,283.84/213,544.80
  6. Step 6: Final answer
    x = 202,510.80

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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.