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Finding the Fourth Proportional to 285,888.70, 394,516.32 and 158,576.14

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Solution

The fourth proportional to 285,888.70, 394,516.32 and 158,576.14 is: 218,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,888.70 : 394,516.32 = 158,576.14 : x
  2. Step 2: Convert to fraction form
    285,888.70/394,516.32 = 158,576.14/x
  3. Step 3: Cross multiply
    285,888.70x = 394,516.32 × 158,576.14
  4. Step 4: Simplify right side
    285,888.70x = 62,560,875,192.60
  5. Step 5: Solve for x
    x = 62,560,875,192.60/285,888.70
  6. Step 6: Final answer
    x = 218,829.48

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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.