Home / 318,922.06-478,217-119,078.10

Finding the Fourth Proportional to 318,922.06, 478,217 and 119,078.10

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Solution

The fourth proportional to 318,922.06, 478,217 and 119,078.10 is: 178,555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,922.06 : 478,217 = 119,078.10 : x
  2. Step 2: Convert to fraction form
    318,922.06/478,217 = 119,078.10/x
  3. Step 3: Cross multiply
    318,922.06x = 478,217 × 119,078.10
  4. Step 4: Simplify right side
    318,922.06x = 56,945,171,747.70
  5. Step 5: Solve for x
    x = 56,945,171,747.70/318,922.06
  6. Step 6: Final answer
    x = 178,555.14

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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.