Home / 281,946.08-389,090.58-154,620.56

Finding the Fourth Proportional to 281,946.08, 389,090.58 and 154,620.56

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Solution

The fourth proportional to 281,946.08, 389,090.58 and 154,620.56 is: 213,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,946.08 : 389,090.58 = 154,620.56 : x
  2. Step 2: Convert to fraction form
    281,946.08/389,090.58 = 154,620.56/x
  3. Step 3: Cross multiply
    281,946.08x = 389,090.58 × 154,620.56
  4. Step 4: Simplify right side
    281,946.08x = 60,161,403,370.32
  5. Step 5: Solve for x
    x = 60,161,403,370.32/281,946.08
  6. Step 6: Final answer
    x = 213,379.11

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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.