Home / 207,914.10-311,871.15-186,918.90

Finding the Fourth Proportional to 207,914.10, 311,871.15 and 186,918.90

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Solution

The fourth proportional to 207,914.10, 311,871.15 and 186,918.90 is: 280,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,914.10 : 311,871.15 = 186,918.90 : x
  2. Step 2: Convert to fraction form
    207,914.10/311,871.15 = 186,918.90/x
  3. Step 3: Cross multiply
    207,914.10x = 311,871.15 × 186,918.90
  4. Step 4: Simplify right side
    207,914.10x = 58,294,612,299.74
  5. Step 5: Solve for x
    x = 58,294,612,299.74/207,914.10
  6. Step 6: Final answer
    x = 280,378.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.