Home / 279,518.03-385,739.55-158,663.02

Finding the Fourth Proportional to 279,518.03, 385,739.55 and 158,663.02

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Solution

The fourth proportional to 279,518.03, 385,739.55 and 158,663.02 is: 218,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,518.03 : 385,739.55 = 158,663.02 : x
  2. Step 2: Convert to fraction form
    279,518.03/385,739.55 = 158,663.02/x
  3. Step 3: Cross multiply
    279,518.03x = 385,739.55 × 158,663.02
  4. Step 4: Simplify right side
    279,518.03x = 61,202,601,936.44
  5. Step 5: Solve for x
    x = 61,202,601,936.44/279,518.03
  6. Step 6: Final answer
    x = 218,957.62

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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.