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Finding the Fourth Proportional to 510,028.91, 765,043.89 and 190,175.89

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Solution

The fourth proportional to 510,028.91, 765,043.89 and 190,175.89 is: 285,264.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,028.91 : 765,043.89 = 190,175.89 : x
  2. Step 2: Convert to fraction form
    510,028.91/765,043.89 = 190,175.89/x
  3. Step 3: Cross multiply
    510,028.91x = 765,043.89 × 190,175.89
  4. Step 4: Simplify right side
    510,028.91x = 145,492,901,478.50
  5. Step 5: Solve for x
    x = 145,492,901,478.50/510,028.91
  6. Step 6: Final answer
    x = 285,264.03

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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.