Home / 213,321.09-320,000.01-55,549.83

Finding the Fourth Proportional to 213,321.09, 320,000.01 and 55,549.83

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Solution

The fourth proportional to 213,321.09, 320,000.01 and 55,549.83 is: 83,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,321.09 : 320,000.01 = 55,549.83 : x
  2. Step 2: Convert to fraction form
    213,321.09/320,000.01 = 55,549.83/x
  3. Step 3: Cross multiply
    213,321.09x = 320,000.01 × 55,549.83
  4. Step 4: Simplify right side
    213,321.09x = 17,775,946,155.50
  5. Step 5: Solve for x
    x = 17,775,946,155.50/213,321.09
  6. Step 6: Final answer
    x = 83,329.53

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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.