Home / 492,788.20-739,182.30-118,811.20

Finding the Fourth Proportional to 492,788.20, 739,182.30 and 118,811.20

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Solution

The fourth proportional to 492,788.20, 739,182.30 and 118,811.20 is: 178,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,788.20 : 739,182.30 = 118,811.20 : x
  2. Step 2: Convert to fraction form
    492,788.20/739,182.30 = 118,811.20/x
  3. Step 3: Cross multiply
    492,788.20x = 739,182.30 × 118,811.20
  4. Step 4: Simplify right side
    492,788.20x = 87,823,136,081.76
  5. Step 5: Solve for x
    x = 87,823,136,081.76/492,788.20
  6. Step 6: Final answer
    x = 178,216.80

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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.