Home / 280,971.01-421,012.64-228,122.29

Finding the Fourth Proportional to 280,971.01, 421,012.64 and 228,122.29

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Solution

The fourth proportional to 280,971.01, 421,012.64 and 228,122.29 is: 341,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,971.01 : 421,012.64 = 228,122.29 : x
  2. Step 2: Convert to fraction form
    280,971.01/421,012.64 = 228,122.29/x
  3. Step 3: Cross multiply
    280,971.01x = 421,012.64 × 228,122.29
  4. Step 4: Simplify right side
    280,971.01x = 96,042,366,415.13
  5. Step 5: Solve for x
    x = 96,042,366,415.13/280,971.01
  6. Step 6: Final answer
    x = 341,823.05

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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.