Home / 318,949.60-478,942.80-230,821.60

Finding the Fourth Proportional to 318,949.60, 478,942.80 and 230,821.60

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Solution

The fourth proportional to 318,949.60, 478,942.80 and 230,821.60 is: 346,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,949.60 : 478,942.80 = 230,821.60 : x
  2. Step 2: Convert to fraction form
    318,949.60/478,942.80 = 230,821.60/x
  3. Step 3: Cross multiply
    318,949.60x = 478,942.80 × 230,821.60
  4. Step 4: Simplify right side
    318,949.60x = 110,550,343,404.48
  5. Step 5: Solve for x
    x = 110,550,343,404.48/318,949.60
  6. Step 6: Final answer
    x = 346,607.56

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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.