Home / 281,218.96-388,081.14-152,157.04

Finding the Fourth Proportional to 281,218.96, 388,081.14 and 152,157.04

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Solution

The fourth proportional to 281,218.96, 388,081.14 and 152,157.04 is: 209,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,218.96 : 388,081.14 = 152,157.04 : x
  2. Step 2: Convert to fraction form
    281,218.96/388,081.14 = 152,157.04/x
  3. Step 3: Cross multiply
    281,218.96x = 388,081.14 × 152,157.04
  4. Step 4: Simplify right side
    281,218.96x = 59,049,277,542.23
  5. Step 5: Solve for x
    x = 59,049,277,542.23/281,218.96
  6. Step 6: Final answer
    x = 209,976.16

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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.