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Finding the Fourth Proportional to 231,045.08, 345,779.08 and 193,647.38

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Solution

The fourth proportional to 231,045.08, 345,779.08 and 193,647.38 is: 289,810.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,045.08 : 345,779.08 = 193,647.38 : x
  2. Step 2: Convert to fraction form
    231,045.08/345,779.08 = 193,647.38/x
  3. Step 3: Cross multiply
    231,045.08x = 345,779.08 × 193,647.38
  4. Step 4: Simplify right side
    231,045.08x = 66,959,212,036.36
  5. Step 5: Solve for x
    x = 66,959,212,036.36/231,045.08
  6. Step 6: Final answer
    x = 289,810.17

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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.