Home / 321,505.45-482,159.67-222,303.13

Finding the Fourth Proportional to 321,505.45, 482,159.67 and 222,303.13

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Solution

The fourth proportional to 321,505.45, 482,159.67 and 222,303.13 is: 333,386.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,505.45 : 482,159.67 = 222,303.13 : x
  2. Step 2: Convert to fraction form
    321,505.45/482,159.67 = 222,303.13/x
  3. Step 3: Cross multiply
    321,505.45x = 482,159.67 × 222,303.13
  4. Step 4: Simplify right side
    321,505.45x = 107,185,603,800.77
  5. Step 5: Solve for x
    x = 107,185,603,800.77/321,505.45
  6. Step 6: Final answer
    x = 333,386.58

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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.