Home / 220,511.96-304,329.10-129,896.44

Finding the Fourth Proportional to 220,511.96, 304,329.10 and 129,896.44

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Solution

The fourth proportional to 220,511.96, 304,329.10 and 129,896.44 is: 179,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,511.96 : 304,329.10 = 129,896.44 : x
  2. Step 2: Convert to fraction form
    220,511.96/304,329.10 = 129,896.44/x
  3. Step 3: Cross multiply
    220,511.96x = 304,329.10 × 129,896.44
  4. Step 4: Simplify right side
    220,511.96x = 39,531,266,678.40
  5. Step 5: Solve for x
    x = 39,531,266,678.40/220,511.96
  6. Step 6: Final answer
    x = 179,270.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.