Home / 285,237.45-393,612.69-156,151.19

Finding the Fourth Proportional to 285,237.45, 393,612.69 and 156,151.19

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Solution

The fourth proportional to 285,237.45, 393,612.69 and 156,151.19 is: 215,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,237.45 : 393,612.69 = 156,151.19 : x
  2. Step 2: Convert to fraction form
    285,237.45/393,612.69 = 156,151.19/x
  3. Step 3: Cross multiply
    285,237.45x = 393,612.69 × 156,151.19
  4. Step 4: Simplify right side
    285,237.45x = 61,463,089,942.60
  5. Step 5: Solve for x
    x = 61,463,089,942.60/285,237.45
  6. Step 6: Final answer
    x = 215,480.44

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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.