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Finding the Fourth Proportional to 245,304.45, 338,516.01 and 137,896.02

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Solution

The fourth proportional to 245,304.45, 338,516.01 and 137,896.02 is: 190,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,304.45 : 338,516.01 = 137,896.02 : x
  2. Step 2: Convert to fraction form
    245,304.45/338,516.01 = 137,896.02/x
  3. Step 3: Cross multiply
    245,304.45x = 338,516.01 × 137,896.02
  4. Step 4: Simplify right side
    245,304.45x = 46,680,010,485.28
  5. Step 5: Solve for x
    x = 46,680,010,485.28/245,304.45
  6. Step 6: Final answer
    x = 190,294.19

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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.