Home / 213,904.80-320,468.40-130,701.60

Finding the Fourth Proportional to 213,904.80, 320,468.40 and 130,701.60

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Solution

The fourth proportional to 213,904.80, 320,468.40 and 130,701.60 is: 195,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,904.80 : 320,468.40 = 130,701.60 : x
  2. Step 2: Convert to fraction form
    213,904.80/320,468.40 = 130,701.60/x
  3. Step 3: Cross multiply
    213,904.80x = 320,468.40 × 130,701.60
  4. Step 4: Simplify right side
    213,904.80x = 41,885,732,629.44
  5. Step 5: Solve for x
    x = 41,885,732,629.44/213,904.80
  6. Step 6: Final answer
    x = 195,814.83

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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.