Home / 213,828.60-320,742.90-186,180.60

Finding the Fourth Proportional to 213,828.60, 320,742.90 and 186,180.60

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Solution

The fourth proportional to 213,828.60, 320,742.90 and 186,180.60 is: 279,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,828.60 : 320,742.90 = 186,180.60 : x
  2. Step 2: Convert to fraction form
    213,828.60/320,742.90 = 186,180.60/x
  3. Step 3: Cross multiply
    213,828.60x = 320,742.90 × 186,180.60
  4. Step 4: Simplify right side
    213,828.60x = 59,716,105,567.74
  5. Step 5: Solve for x
    x = 59,716,105,567.74/213,828.60
  6. Step 6: Final answer
    x = 279,270.90

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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.