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Finding the Fourth Proportional to 340,074.40, 510,111.60 and 323,744.80

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Solution

The fourth proportional to 340,074.40, 510,111.60 and 323,744.80 is: 485,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,074.40 : 510,111.60 = 323,744.80 : x
  2. Step 2: Convert to fraction form
    340,074.40/510,111.60 = 323,744.80/x
  3. Step 3: Cross multiply
    340,074.40x = 510,111.60 × 323,744.80
  4. Step 4: Simplify right side
    340,074.40x = 165,145,977,919.68
  5. Step 5: Solve for x
    x = 165,145,977,919.68/340,074.40
  6. Step 6: Final answer
    x = 485,617.20

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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.