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Finding the Fourth Proportional to 285,624.96, 394,161.62 and 158,300.56

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Solution

The fourth proportional to 285,624.96, 394,161.62 and 158,300.56 is: 218,454.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,624.96 : 394,161.62 = 158,300.56 : x
  2. Step 2: Convert to fraction form
    285,624.96/394,161.62 = 158,300.56/x
  3. Step 3: Cross multiply
    285,624.96x = 394,161.62 × 158,300.56
  4. Step 4: Simplify right side
    285,624.96x = 62,396,005,176.51
  5. Step 5: Solve for x
    x = 62,396,005,176.51/285,624.96
  6. Step 6: Final answer
    x = 218,454.32

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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.