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Finding the Fourth Proportional to 285,801.88, 428,604.26 and 117,274.36

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Solution

The fourth proportional to 285,801.88, 428,604.26 and 117,274.36 is: 175,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,801.88 : 428,604.26 = 117,274.36 : x
  2. Step 2: Convert to fraction form
    285,801.88/428,604.26 = 117,274.36/x
  3. Step 3: Cross multiply
    285,801.88x = 428,604.26 × 117,274.36
  4. Step 4: Simplify right side
    285,801.88x = 50,264,290,284.77
  5. Step 5: Solve for x
    x = 50,264,290,284.77/285,801.88
  6. Step 6: Final answer
    x = 175,871.10

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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.