Home / 219,208.25-302,507.60-123,712.90

Finding the Fourth Proportional to 219,208.25, 302,507.60 and 123,712.90

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Solution

The fourth proportional to 219,208.25, 302,507.60 and 123,712.90 is: 170,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,208.25 : 302,507.60 = 123,712.90 : x
  2. Step 2: Convert to fraction form
    219,208.25/302,507.60 = 123,712.90/x
  3. Step 3: Cross multiply
    219,208.25x = 302,507.60 × 123,712.90
  4. Step 4: Simplify right side
    219,208.25x = 37,424,090,336.94
  5. Step 5: Solve for x
    x = 37,424,090,336.94/219,208.25
  6. Step 6: Final answer
    x = 170,723.91

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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.