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Finding the Fourth Proportional to 236,771.58, 326,744.91 and 129,342.90

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Solution

The fourth proportional to 236,771.58, 326,744.91 and 129,342.90 is: 178,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,771.58 : 326,744.91 = 129,342.90 : x
  2. Step 2: Convert to fraction form
    236,771.58/326,744.91 = 129,342.90/x
  3. Step 3: Cross multiply
    236,771.58x = 326,744.91 × 129,342.90
  4. Step 4: Simplify right side
    236,771.58x = 42,262,134,219.64
  5. Step 5: Solve for x
    x = 42,262,134,219.64/236,771.58
  6. Step 6: Final answer
    x = 178,493.27

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1.5x scale

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.