Home / 279,002.04-385,052.94-158,130.36

Finding the Fourth Proportional to 279,002.04, 385,052.94 and 158,130.36

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Solution

The fourth proportional to 279,002.04, 385,052.94 and 158,130.36 is: 218,236.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,002.04 : 385,052.94 = 158,130.36 : x
  2. Step 2: Convert to fraction form
    279,002.04/385,052.94 = 158,130.36/x
  3. Step 3: Cross multiply
    279,002.04x = 385,052.94 × 158,130.36
  4. Step 4: Simplify right side
    279,002.04x = 60,888,560,021.26
  5. Step 5: Solve for x
    x = 60,888,560,021.26/279,002.04
  6. Step 6: Final answer
    x = 218,236.97

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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.