Home / 226,231.06-312,055.40-138,977.98

Finding the Fourth Proportional to 226,231.06, 312,055.40 and 138,977.98

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Solution

The fourth proportional to 226,231.06, 312,055.40 and 138,977.98 is: 191,701.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,231.06 : 312,055.40 = 138,977.98 : x
  2. Step 2: Convert to fraction form
    226,231.06/312,055.40 = 138,977.98/x
  3. Step 3: Cross multiply
    226,231.06x = 312,055.40 × 138,977.98
  4. Step 4: Simplify right side
    226,231.06x = 43,368,829,140.09
  5. Step 5: Solve for x
    x = 43,368,829,140.09/226,231.06
  6. Step 6: Final answer
    x = 191,701.48

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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.