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Finding the Fourth Proportional to 286,546.88, 429,708 and 168,248

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Solution

The fourth proportional to 286,546.88, 429,708 and 168,248 is: 252,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,546.88 : 429,708 = 168,248 : x
  2. Step 2: Convert to fraction form
    286,546.88/429,708 = 168,248/x
  3. Step 3: Cross multiply
    286,546.88x = 429,708 × 168,248
  4. Step 4: Simplify right side
    286,546.88x = 72,297,511,584
  5. Step 5: Solve for x
    x = 72,297,511,584/286,546.88
  6. Step 6: Final answer
    x = 252,306.05

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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.