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Finding the Fourth Proportional to 285,558.46, 394,020.71 and 162,994.88

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Solution

The fourth proportional to 285,558.46, 394,020.71 and 162,994.88 is: 224,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,558.46 : 394,020.71 = 162,994.88 : x
  2. Step 2: Convert to fraction form
    285,558.46/394,020.71 = 162,994.88/x
  3. Step 3: Cross multiply
    285,558.46x = 394,020.71 × 162,994.88
  4. Step 4: Simplify right side
    285,558.46x = 64,223,358,343.96
  5. Step 5: Solve for x
    x = 64,223,358,343.96/285,558.46
  6. Step 6: Final answer
    x = 224,904.41

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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.