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Finding the Fourth Proportional to 236,797.89, 326,779.88 and 129,374.07

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Solution

The fourth proportional to 236,797.89, 326,779.88 and 129,374.07 is: 178,535.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,797.89 : 326,779.88 = 129,374.07 : x
  2. Step 2: Convert to fraction form
    236,797.89/326,779.88 = 129,374.07/x
  3. Step 3: Cross multiply
    236,797.89x = 326,779.88 × 129,374.07
  4. Step 4: Simplify right side
    236,797.89x = 42,276,843,069.71
  5. Step 5: Solve for x
    x = 42,276,843,069.71/236,797.89
  6. Step 6: Final answer
    x = 178,535.56

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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.