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Finding the Fourth Proportional to 318,040.86, 438,899.13 and 174,804.24

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Solution

The fourth proportional to 318,040.86, 438,899.13 and 174,804.24 is: 241,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,040.86 : 438,899.13 = 174,804.24 : x
  2. Step 2: Convert to fraction form
    318,040.86/438,899.13 = 174,804.24/x
  3. Step 3: Cross multiply
    318,040.86x = 438,899.13 × 174,804.24
  4. Step 4: Simplify right side
    318,040.86x = 76,721,428,856.31
  5. Step 5: Solve for x
    x = 76,721,428,856.31/318,040.86
  6. Step 6: Final answer
    x = 241,231.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.