Home / 346,028.60-518,945.70-109,443.80

Finding the Fourth Proportional to 346,028.60, 518,945.70 and 109,443.80

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Solution

The fourth proportional to 346,028.60, 518,945.70 and 109,443.80 is: 164,134.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,028.60 : 518,945.70 = 109,443.80 : x
  2. Step 2: Convert to fraction form
    346,028.60/518,945.70 = 109,443.80/x
  3. Step 3: Cross multiply
    346,028.60x = 518,945.70 × 109,443.80
  4. Step 4: Simplify right side
    346,028.60x = 56,795,389,401.66
  5. Step 5: Solve for x
    x = 56,795,389,401.66/346,028.60
  6. Step 6: Final answer
    x = 164,134.96

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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.