Home / 279,424.13-384,870.74-214,769.73

Finding the Fourth Proportional to 279,424.13, 384,870.74 and 214,769.73

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Solution

The fourth proportional to 279,424.13, 384,870.74 and 214,769.73 is: 295,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,424.13 : 384,870.74 = 214,769.73 : x
  2. Step 2: Convert to fraction form
    279,424.13/384,870.74 = 214,769.73/x
  3. Step 3: Cross multiply
    279,424.13x = 384,870.74 × 214,769.73
  4. Step 4: Simplify right side
    279,424.13x = 82,658,583,840.85
  5. Step 5: Solve for x
    x = 82,658,583,840.85/279,424.13
  6. Step 6: Final answer
    x = 295,817.64

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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.