Home / 281,946.69-389,086.94-154,623.20

Finding the Fourth Proportional to 281,946.69, 389,086.94 and 154,623.20

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Solution

The fourth proportional to 281,946.69, 389,086.94 and 154,623.20 is: 213,380.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,946.69 : 389,086.94 = 154,623.20 : x
  2. Step 2: Convert to fraction form
    281,946.69/389,086.94 = 154,623.20/x
  3. Step 3: Cross multiply
    281,946.69x = 389,086.94 × 154,623.20
  4. Step 4: Simplify right side
    281,946.69x = 60,161,866,182.13
  5. Step 5: Solve for x
    x = 60,161,866,182.13/281,946.69
  6. Step 6: Final answer
    x = 213,380.29

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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.