Home / 279,770.37-386,071.03-158,911.28

Finding the Fourth Proportional to 279,770.37, 386,071.03 and 158,911.28

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Solution

The fourth proportional to 279,770.37, 386,071.03 and 158,911.28 is: 219,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,770.37 : 386,071.03 = 158,911.28 : x
  2. Step 2: Convert to fraction form
    279,770.37/386,071.03 = 158,911.28/x
  3. Step 3: Cross multiply
    279,770.37x = 386,071.03 × 158,911.28
  4. Step 4: Simplify right side
    279,770.37x = 61,351,041,548.22
  5. Step 5: Solve for x
    x = 61,351,041,548.22/279,770.37
  6. Step 6: Final answer
    x = 219,290.70

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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.