Home / 281,983.80-389,151.90-154,671.24

Finding the Fourth Proportional to 281,983.80, 389,151.90 and 154,671.24

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Solution

The fourth proportional to 281,983.80, 389,151.90 and 154,671.24 is: 213,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,983.80 : 389,151.90 = 154,671.24 : x
  2. Step 2: Convert to fraction form
    281,983.80/389,151.90 = 154,671.24/x
  3. Step 3: Cross multiply
    281,983.80x = 389,151.90 × 154,671.24
  4. Step 4: Simplify right side
    281,983.80x = 60,190,606,921.36
  5. Step 5: Solve for x
    x = 60,190,606,921.36/281,983.80
  6. Step 6: Final answer
    x = 213,454.13

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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.