Home / 434,540.60-651,843.30-154,021.40

Finding the Fourth Proportional to 434,540.60, 651,843.30 and 154,021.40

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Solution

The fourth proportional to 434,540.60, 651,843.30 and 154,021.40 is: 231,043.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,540.60 : 651,843.30 = 154,021.40 : x
  2. Step 2: Convert to fraction form
    434,540.60/651,843.30 = 154,021.40/x
  3. Step 3: Cross multiply
    434,540.60x = 651,843.30 × 154,021.40
  4. Step 4: Simplify right side
    434,540.60x = 100,397,817,646.62
  5. Step 5: Solve for x
    x = 100,397,817,646.62/434,540.60
  6. Step 6: Final answer
    x = 231,043.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.