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Finding the Fourth Proportional to 318,343.98, 439,305.42 and 175,104

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Solution

The fourth proportional to 318,343.98, 439,305.42 and 175,104 is: 241,638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,343.98 : 439,305.42 = 175,104 : x
  2. Step 2: Convert to fraction form
    318,343.98/439,305.42 = 175,104/x
  3. Step 3: Cross multiply
    318,343.98x = 439,305.42 × 175,104
  4. Step 4: Simplify right side
    318,343.98x = 76,924,136,263.68
  5. Step 5: Solve for x
    x = 76,924,136,263.68/318,343.98
  6. Step 6: Final answer
    x = 241,638.42

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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.