Home / 281,972.04-389,121.51-152,910.48

Finding the Fourth Proportional to 281,972.04, 389,121.51 and 152,910.48

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Solution

The fourth proportional to 281,972.04, 389,121.51 and 152,910.48 is: 211,016.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,972.04 : 389,121.51 = 152,910.48 : x
  2. Step 2: Convert to fraction form
    281,972.04/389,121.51 = 152,910.48/x
  3. Step 3: Cross multiply
    281,972.04x = 389,121.51 × 152,910.48
  4. Step 4: Simplify right side
    281,972.04x = 59,500,755,135.07
  5. Step 5: Solve for x
    x = 59,500,755,135.07/281,972.04
  6. Step 6: Final answer
    x = 211,016.51

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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.