Home / 186,289.20-256,589.40-143,186.28

Finding the Fourth Proportional to 186,289.20, 256,589.40 and 143,186.28

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Solution

The fourth proportional to 186,289.20, 256,589.40 and 143,186.28 is: 197,220.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,289.20 : 256,589.40 = 143,186.28 : x
  2. Step 2: Convert to fraction form
    186,289.20/256,589.40 = 143,186.28/x
  3. Step 3: Cross multiply
    186,289.20x = 256,589.40 × 143,186.28
  4. Step 4: Simplify right side
    186,289.20x = 36,740,081,673.43
  5. Step 5: Solve for x
    x = 36,740,081,673.43/186,289.20
  6. Step 6: Final answer
    x = 197,220.67

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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.