Home / 281,784.03-388,863.33-168,606.78

Finding the Fourth Proportional to 281,784.03, 388,863.33 and 168,606.78

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Solution

The fourth proportional to 281,784.03, 388,863.33 and 168,606.78 is: 232,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,784.03 : 388,863.33 = 168,606.78 : x
  2. Step 2: Convert to fraction form
    281,784.03/388,863.33 = 168,606.78/x
  3. Step 3: Cross multiply
    281,784.03x = 388,863.33 × 168,606.78
  4. Step 4: Simplify right side
    281,784.03x = 65,564,993,931.38
  5. Step 5: Solve for x
    x = 65,564,993,931.38/281,784.03
  6. Step 6: Final answer
    x = 232,678.18

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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.