Home / 345,890.09-518,669.05-196,090.15

Finding the Fourth Proportional to 345,890.09, 518,669.05 and 196,090.15

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Solution

The fourth proportional to 345,890.09, 518,669.05 and 196,090.15 is: 294,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,890.09 : 518,669.05 = 196,090.15 : x
  2. Step 2: Convert to fraction form
    345,890.09/518,669.05 = 196,090.15/x
  3. Step 3: Cross multiply
    345,890.09x = 518,669.05 × 196,090.15
  4. Step 4: Simplify right side
    345,890.09x = 101,705,891,814.86
  5. Step 5: Solve for x
    x = 101,705,891,814.86/345,890.09
  6. Step 6: Final answer
    x = 294,041.07

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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.