Home / 320,999.40-482,535.90-228,148.20

Finding the Fourth Proportional to 320,999.40, 482,535.90 and 228,148.20

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Solution

The fourth proportional to 320,999.40, 482,535.90 and 228,148.20 is: 342,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,999.40 : 482,535.90 = 228,148.20 : x
  2. Step 2: Convert to fraction form
    320,999.40/482,535.90 = 228,148.20/x
  3. Step 3: Cross multiply
    320,999.40x = 482,535.90 × 228,148.20
  4. Step 4: Simplify right side
    320,999.40x = 110,089,697,020.38
  5. Step 5: Solve for x
    x = 110,089,697,020.38/320,999.40
  6. Step 6: Final answer
    x = 342,959.20

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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.