Home / 285,427.50-393,889.98-158,111.34

Finding the Fourth Proportional to 285,427.50, 393,889.98 and 158,111.34

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Solution

The fourth proportional to 285,427.50, 393,889.98 and 158,111.34 is: 218,193.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,427.50 : 393,889.98 = 158,111.34 : x
  2. Step 2: Convert to fraction form
    285,427.50/393,889.98 = 158,111.34/x
  3. Step 3: Cross multiply
    285,427.50x = 393,889.98 × 158,111.34
  4. Step 4: Simplify right side
    285,427.50x = 62,278,472,550.37
  5. Step 5: Solve for x
    x = 62,278,472,550.37/285,427.50
  6. Step 6: Final answer
    x = 218,193.67

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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.