Home / 213,491.08-320,236.62-55,718.17

Finding the Fourth Proportional to 213,491.08, 320,236.62 and 55,718.17

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Solution

The fourth proportional to 213,491.08, 320,236.62 and 55,718.17 is: 83,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,491.08 : 320,236.62 = 55,718.17 : x
  2. Step 2: Convert to fraction form
    213,491.08/320,236.62 = 55,718.17/x
  3. Step 3: Cross multiply
    213,491.08x = 320,236.62 × 55,718.17
  4. Step 4: Simplify right side
    213,491.08x = 17,842,998,433.39
  5. Step 5: Solve for x
    x = 17,842,998,433.39/213,491.08
  6. Step 6: Final answer
    x = 83,577.26

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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.