Home / 320,172.80-480,330.50-95,537.12

Finding the Fourth Proportional to 320,172.80, 480,330.50 and 95,537.12

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Solution

The fourth proportional to 320,172.80, 480,330.50 and 95,537.12 is: 143,326.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,172.80 : 480,330.50 = 95,537.12 : x
  2. Step 2: Convert to fraction form
    320,172.80/480,330.50 = 95,537.12/x
  3. Step 3: Cross multiply
    320,172.80x = 480,330.50 × 95,537.12
  4. Step 4: Simplify right side
    320,172.80x = 45,889,389,738.82
  5. Step 5: Solve for x
    x = 45,889,389,738.82/320,172.80
  6. Step 6: Final answer
    x = 143,326.95

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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.