Home / 219,081.39-302,346.32-123,553.23

Finding the Fourth Proportional to 219,081.39, 302,346.32 and 123,553.23

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Solution

The fourth proportional to 219,081.39, 302,346.32 and 123,553.23 is: 170,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,081.39 : 302,346.32 = 123,553.23 : x
  2. Step 2: Convert to fraction form
    219,081.39/302,346.32 = 123,553.23/x
  3. Step 3: Cross multiply
    219,081.39x = 302,346.32 × 123,553.23
  4. Step 4: Simplify right side
    219,081.39x = 37,355,863,796.85
  5. Step 5: Solve for x
    x = 37,355,863,796.85/219,081.39
  6. Step 6: Final answer
    x = 170,511.35

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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.