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Finding the Fourth Proportional to 286,512.60, 429,617.70 and 96,907.80

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Solution

The fourth proportional to 286,512.60, 429,617.70 and 96,907.80 is: 145,310.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,512.60 : 429,617.70 = 96,907.80 : x
  2. Step 2: Convert to fraction form
    286,512.60/429,617.70 = 96,907.80/x
  3. Step 3: Cross multiply
    286,512.60x = 429,617.70 × 96,907.80
  4. Step 4: Simplify right side
    286,512.60x = 41,633,306,148.06
  5. Step 5: Solve for x
    x = 41,633,306,148.06/286,512.60
  6. Step 6: Final answer
    x = 145,310.56

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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.