Home / 281,008.06-387,790.27-151,945.65

Finding the Fourth Proportional to 281,008.06, 387,790.27 and 151,945.65

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Solution

The fourth proportional to 281,008.06, 387,790.27 and 151,945.65 is: 209,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,008.06 : 387,790.27 = 151,945.65 : x
  2. Step 2: Convert to fraction form
    281,008.06/387,790.27 = 151,945.65/x
  3. Step 3: Cross multiply
    281,008.06x = 387,790.27 × 151,945.65
  4. Step 4: Simplify right side
    281,008.06x = 58,923,044,638.83
  5. Step 5: Solve for x
    x = 58,923,044,638.83/281,008.06
  6. Step 6: Final answer
    x = 209,684.54

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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.