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Finding the Fourth Proportional to 340,480.98, 511,109.01 and 172,191.33

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Solution

The fourth proportional to 340,480.98, 511,109.01 and 172,191.33 is: 258,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,480.98 : 511,109.01 = 172,191.33 : x
  2. Step 2: Convert to fraction form
    340,480.98/511,109.01 = 172,191.33/x
  3. Step 3: Cross multiply
    340,480.98x = 511,109.01 × 172,191.33
  4. Step 4: Simplify right side
    340,480.98x = 88,008,540,206.88
  5. Step 5: Solve for x
    x = 88,008,540,206.88/340,480.98
  6. Step 6: Final answer
    x = 258,482.99

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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.