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Finding the Fourth Proportional to 245,305.34, 338,491.05 and 141,957.26

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Solution

The fourth proportional to 245,305.34, 338,491.05 and 141,957.26 is: 195,883.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,305.34 : 338,491.05 = 141,957.26 : x
  2. Step 2: Convert to fraction form
    245,305.34/338,491.05 = 141,957.26/x
  3. Step 3: Cross multiply
    245,305.34x = 338,491.05 × 141,957.26
  4. Step 4: Simplify right side
    245,305.34x = 48,051,261,992.52
  5. Step 5: Solve for x
    x = 48,051,261,992.52/245,305.34
  6. Step 6: Final answer
    x = 195,883.47

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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.