Home / 281,918.97-389,047.96-152,861.72

Finding the Fourth Proportional to 281,918.97, 389,047.96 and 152,861.72

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Solution

The fourth proportional to 281,918.97, 389,047.96 and 152,861.72 is: 210,949.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,918.97 : 389,047.96 = 152,861.72 : x
  2. Step 2: Convert to fraction form
    281,918.97/389,047.96 = 152,861.72/x
  3. Step 3: Cross multiply
    281,918.97x = 389,047.96 × 152,861.72
  4. Step 4: Simplify right side
    281,918.97x = 59,470,539,563.78
  5. Step 5: Solve for x
    x = 59,470,539,563.78/281,918.97
  6. Step 6: Final answer
    x = 210,949.05

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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.