Home / 421,919.61-582,246.95-228,327.18

Finding the Fourth Proportional to 421,919.61, 582,246.95 and 228,327.18

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Solution

The fourth proportional to 421,919.61, 582,246.95 and 228,327.18 is: 315,090.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,919.61 : 582,246.95 = 228,327.18 : x
  2. Step 2: Convert to fraction form
    421,919.61/582,246.95 = 228,327.18/x
  3. Step 3: Cross multiply
    421,919.61x = 582,246.95 × 228,327.18
  4. Step 4: Simplify right side
    421,919.61x = 132,942,803,015.47
  5. Step 5: Solve for x
    x = 132,942,803,015.47/421,919.61
  6. Step 6: Final answer
    x = 315,090.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.