Home / 278,228.50-417,396.86-118,302.60

Finding the Fourth Proportional to 278,228.50, 417,396.86 and 118,302.60

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Solution

The fourth proportional to 278,228.50, 417,396.86 and 118,302.60 is: 177,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,228.50 : 417,396.86 = 118,302.60 : x
  2. Step 2: Convert to fraction form
    278,228.50/417,396.86 = 118,302.60/x
  3. Step 3: Cross multiply
    278,228.50x = 417,396.86 × 118,302.60
  4. Step 4: Simplify right side
    278,228.50x = 49,379,131,978.61
  5. Step 5: Solve for x
    x = 49,379,131,978.61/278,228.50
  6. Step 6: Final answer
    x = 177,476.90

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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.