Home / 210,764.58-290,851.05-115,270.98

Finding the Fourth Proportional to 210,764.58, 290,851.05 and 115,270.98

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Solution

The fourth proportional to 210,764.58, 290,851.05 and 115,270.98 is: 159,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,764.58 : 290,851.05 = 115,270.98 : x
  2. Step 2: Convert to fraction form
    210,764.58/290,851.05 = 115,270.98/x
  3. Step 3: Cross multiply
    210,764.58x = 290,851.05 × 115,270.98
  4. Step 4: Simplify right side
    210,764.58x = 33,526,685,567.53
  5. Step 5: Solve for x
    x = 33,526,685,567.53/210,764.58
  6. Step 6: Final answer
    x = 159,071.73

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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.