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Finding the Fourth Proportional to 236,459.52, 326,304 and 129,026.88

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Solution

The fourth proportional to 236,459.52, 326,304 and 129,026.88 is: 178,051.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,459.52 : 326,304 = 129,026.88 : x
  2. Step 2: Convert to fraction form
    236,459.52/326,304 = 129,026.88/x
  3. Step 3: Cross multiply
    236,459.52x = 326,304 × 129,026.88
  4. Step 4: Simplify right side
    236,459.52x = 42,101,987,051.52
  5. Step 5: Solve for x
    x = 42,101,987,051.52/236,459.52
  6. Step 6: Final answer
    x = 178,051.56

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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.