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Finding the Fourth Proportional to 285,574.07, 394,094.57 and 158,251.79

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Solution

The fourth proportional to 285,574.07, 394,094.57 and 158,251.79 is: 218,388.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,574.07 : 394,094.57 = 158,251.79 : x
  2. Step 2: Convert to fraction form
    285,574.07/394,094.57 = 158,251.79/x
  3. Step 3: Cross multiply
    285,574.07x = 394,094.57 × 158,251.79
  4. Step 4: Simplify right side
    285,574.07x = 62,366,168,370.05
  5. Step 5: Solve for x
    x = 62,366,168,370.05/285,574.07
  6. Step 6: Final answer
    x = 218,388.77

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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.