Home / 345,328.11-518,072.28-108,664.62

Finding the Fourth Proportional to 345,328.11, 518,072.28 and 108,664.62

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Solution

The fourth proportional to 345,328.11, 518,072.28 and 108,664.62 is: 163,022.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,328.11 : 518,072.28 = 108,664.62 : x
  2. Step 2: Convert to fraction form
    345,328.11/518,072.28 = 108,664.62/x
  3. Step 3: Cross multiply
    345,328.11x = 518,072.28 × 108,664.62
  4. Step 4: Simplify right side
    345,328.11x = 56,296,127,438.73
  5. Step 5: Solve for x
    x = 56,296,127,438.73/345,328.11
  6. Step 6: Final answer
    x = 163,022.14

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1.5x scale

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.