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Finding the Fourth Proportional to 245,466.42, 338,741.52 and 138,034.16

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Solution

The fourth proportional to 245,466.42, 338,741.52 and 138,034.16 is: 190,485.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,466.42 : 338,741.52 = 138,034.16 : x
  2. Step 2: Convert to fraction form
    245,466.42/338,741.52 = 138,034.16/x
  3. Step 3: Cross multiply
    245,466.42x = 338,741.52 × 138,034.16
  4. Step 4: Simplify right side
    245,466.42x = 46,757,901,170.32
  5. Step 5: Solve for x
    x = 46,757,901,170.32/245,466.42
  6. Step 6: Final answer
    x = 190,485.94

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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.