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Finding the Fourth Proportional to 342,790.98, 513,871.56 and 118,098

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Solution

The fourth proportional to 342,790.98, 513,871.56 and 118,098 is: 177,038.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,790.98 : 513,871.56 = 118,098 : x
  2. Step 2: Convert to fraction form
    342,790.98/513,871.56 = 118,098/x
  3. Step 3: Cross multiply
    342,790.98x = 513,871.56 × 118,098
  4. Step 4: Simplify right side
    342,790.98x = 60,687,203,492.88
  5. Step 5: Solve for x
    x = 60,687,203,492.88/342,790.98
  6. Step 6: Final answer
    x = 177,038.51

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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.