Home / 282,111.45-389,310.75-154,787.01

Finding the Fourth Proportional to 282,111.45, 389,310.75 and 154,787.01

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Solution

The fourth proportional to 282,111.45, 389,310.75 and 154,787.01 is: 213,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,111.45 : 389,310.75 = 154,787.01 : x
  2. Step 2: Convert to fraction form
    282,111.45/389,310.75 = 154,787.01/x
  3. Step 3: Cross multiply
    282,111.45x = 389,310.75 × 154,787.01
  4. Step 4: Simplify right side
    282,111.45x = 60,260,246,953.36
  5. Step 5: Solve for x
    x = 60,260,246,953.36/282,111.45
  6. Step 6: Final answer
    x = 213,604.40

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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.