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Finding the Fourth Proportional to 279,416.73, 385,584.36 and 158,550.81

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Solution

The fourth proportional to 279,416.73, 385,584.36 and 158,550.81 is: 218,794.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,416.73 : 385,584.36 = 158,550.81 : x
  2. Step 2: Convert to fraction form
    279,416.73/385,584.36 = 158,550.81/x
  3. Step 3: Cross multiply
    279,416.73x = 385,584.36 × 158,550.81
  4. Step 4: Simplify right side
    279,416.73x = 61,134,712,601.33
  5. Step 5: Solve for x
    x = 61,134,712,601.33/279,416.73
  6. Step 6: Final answer
    x = 218,794.03

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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.