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Finding the Fourth Proportional to 389,231.06, 537,015.22 and 228,034.58

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Solution

The fourth proportional to 389,231.06, 537,015.22 and 228,034.58 is: 314,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,231.06 : 537,015.22 = 228,034.58 : x
  2. Step 2: Convert to fraction form
    389,231.06/537,015.22 = 228,034.58/x
  3. Step 3: Cross multiply
    389,231.06x = 537,015.22 × 228,034.58
  4. Step 4: Simplify right side
    389,231.06x = 122,458,036,891.15
  5. Step 5: Solve for x
    x = 122,458,036,891.15/389,231.06
  6. Step 6: Final answer
    x = 314,615.28

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1.5x scale

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.