Home / 281,899.96-389,020.80-154,583.62

Finding the Fourth Proportional to 281,899.96, 389,020.80 and 154,583.62

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Solution

The fourth proportional to 281,899.96, 389,020.80 and 154,583.62 is: 213,324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,899.96 : 389,020.80 = 154,583.62 : x
  2. Step 2: Convert to fraction form
    281,899.96/389,020.80 = 154,583.62/x
  3. Step 3: Cross multiply
    281,899.96x = 389,020.80 × 154,583.62
  4. Step 4: Simplify right side
    281,899.96x = 60,136,243,519.30
  5. Step 5: Solve for x
    x = 60,136,243,519.30/281,899.96
  6. Step 6: Final answer
    x = 213,324.77

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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.