Home / 421,899.58-582,219.33-228,307.15

Finding the Fourth Proportional to 421,899.58, 582,219.33 and 228,307.15

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Solution

The fourth proportional to 421,899.58, 582,219.33 and 228,307.15 is: 315,062.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,899.58 : 582,219.33 = 228,307.15 : x
  2. Step 2: Convert to fraction form
    421,899.58/582,219.33 = 228,307.15/x
  3. Step 3: Cross multiply
    421,899.58x = 582,219.33 × 228,307.15
  4. Step 4: Simplify right side
    421,899.58x = 132,924,835,907.21
  5. Step 5: Solve for x
    x = 132,924,835,907.21/421,899.58
  6. Step 6: Final answer
    x = 315,062.74

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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.