Home / 309,927.22-465,070.32-129,996.65

Finding the Fourth Proportional to 309,927.22, 465,070.32 and 129,996.65

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Solution

The fourth proportional to 309,927.22, 465,070.32 and 129,996.65 is: 195,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,927.22 : 465,070.32 = 129,996.65 : x
  2. Step 2: Convert to fraction form
    309,927.22/465,070.32 = 129,996.65/x
  3. Step 3: Cross multiply
    309,927.22x = 465,070.32 × 129,996.65
  4. Step 4: Simplify right side
    309,927.22x = 60,457,584,777.10
  5. Step 5: Solve for x
    x = 60,457,584,777.10/309,927.22
  6. Step 6: Final answer
    x = 195,070.27

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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.