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Finding the Fourth Proportional to 318,013.32, 438,866.52 and 174,777

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Solution

The fourth proportional to 318,013.32, 438,866.52 and 174,777 is: 241,196.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,013.32 : 438,866.52 = 174,777 : x
  2. Step 2: Convert to fraction form
    318,013.32/438,866.52 = 174,777/x
  3. Step 3: Cross multiply
    318,013.32x = 438,866.52 × 174,777
  4. Step 4: Simplify right side
    318,013.32x = 76,703,773,766.04
  5. Step 5: Solve for x
    x = 76,703,773,766.04/318,013.32
  6. Step 6: Final answer
    x = 241,196.73

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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.