Home / 281,974.22-389,063.45-178,638.47

Finding the Fourth Proportional to 281,974.22, 389,063.45 and 178,638.47

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Solution

The fourth proportional to 281,974.22, 389,063.45 and 178,638.47 is: 246,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,974.22 : 389,063.45 = 178,638.47 : x
  2. Step 2: Convert to fraction form
    281,974.22/389,063.45 = 178,638.47/x
  3. Step 3: Cross multiply
    281,974.22x = 389,063.45 × 178,638.47
  4. Step 4: Simplify right side
    281,974.22x = 69,501,696,602.41
  5. Step 5: Solve for x
    x = 69,501,696,602.41/281,974.22
  6. Step 6: Final answer
    x = 246,482.45

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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.