Home / 285,194.16-393,566.46-156,144.36

Finding the Fourth Proportional to 285,194.16, 393,566.46 and 156,144.36

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Solution

The fourth proportional to 285,194.16, 393,566.46 and 156,144.36 is: 215,478.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,194.16 : 393,566.46 = 156,144.36 : x
  2. Step 2: Convert to fraction form
    285,194.16/393,566.46 = 156,144.36/x
  3. Step 3: Cross multiply
    285,194.16x = 393,566.46 × 156,144.36
  4. Step 4: Simplify right side
    285,194.16x = 61,453,183,014.17
  5. Step 5: Solve for x
    x = 61,453,183,014.17/285,194.16
  6. Step 6: Final answer
    x = 215,478.41

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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.