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Finding the Fourth Proportional to 239,339.46, 359,051.88 and 79,425

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Solution

The fourth proportional to 239,339.46, 359,051.88 and 79,425 is: 119,151.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,339.46 : 359,051.88 = 79,425 : x
  2. Step 2: Convert to fraction form
    239,339.46/359,051.88 = 79,425/x
  3. Step 3: Cross multiply
    239,339.46x = 359,051.88 × 79,425
  4. Step 4: Simplify right side
    239,339.46x = 28,517,695,569
  5. Step 5: Solve for x
    x = 28,517,695,569/239,339.46
  6. Step 6: Final answer
    x = 119,151.67

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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.