Home / 281,998.80-389,172.62-154,686.24

Finding the Fourth Proportional to 281,998.80, 389,172.62 and 154,686.24

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Solution

The fourth proportional to 281,998.80, 389,172.62 and 154,686.24 is: 213,474.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,998.80 : 389,172.62 = 154,686.24 : x
  2. Step 2: Convert to fraction form
    281,998.80/389,172.62 = 154,686.24/x
  3. Step 3: Cross multiply
    281,998.80x = 389,172.62 × 154,686.24
  4. Step 4: Simplify right side
    281,998.80x = 60,199,649,298.75
  5. Step 5: Solve for x
    x = 60,199,649,298.75/281,998.80
  6. Step 6: Final answer
    x = 213,474.84

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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.