Home / 279,695.36-385,982.24-158,839.16

Finding the Fourth Proportional to 279,695.36, 385,982.24 and 158,839.16

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Solution

The fourth proportional to 279,695.36, 385,982.24 and 158,839.16 is: 219,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,695.36 : 385,982.24 = 158,839.16 : x
  2. Step 2: Convert to fraction form
    279,695.36/385,982.24 = 158,839.16/x
  3. Step 3: Cross multiply
    279,695.36x = 385,982.24 × 158,839.16
  4. Step 4: Simplify right side
    279,695.36x = 61,309,094,776.52
  5. Step 5: Solve for x
    x = 61,309,094,776.52/279,695.36
  6. Step 6: Final answer
    x = 219,199.54

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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.