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Finding the Fourth Proportional to 318,361.50, 439,334.16 and 175,113

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Solution

The fourth proportional to 318,361.50, 439,334.16 and 175,113 is: 241,653.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,361.50 : 439,334.16 = 175,113 : x
  2. Step 2: Convert to fraction form
    318,361.50/439,334.16 = 175,113/x
  3. Step 3: Cross multiply
    318,361.50x = 439,334.16 × 175,113
  4. Step 4: Simplify right side
    318,361.50x = 76,933,122,760.08
  5. Step 5: Solve for x
    x = 76,933,122,760.08/318,361.50
  6. Step 6: Final answer
    x = 241,653.35

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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.