Home / 219,478.82-302,876.42-122,682.20

Finding the Fourth Proportional to 219,478.82, 302,876.42 and 122,682.20

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Solution

The fourth proportional to 219,478.82, 302,876.42 and 122,682.20 is: 169,299.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,478.82 : 302,876.42 = 122,682.20 : x
  2. Step 2: Convert to fraction form
    219,478.82/302,876.42 = 122,682.20/x
  3. Step 3: Cross multiply
    219,478.82x = 302,876.42 × 122,682.20
  4. Step 4: Simplify right side
    219,478.82x = 37,157,543,405.93
  5. Step 5: Solve for x
    x = 37,157,543,405.93/219,478.82
  6. Step 6: Final answer
    x = 169,299.00

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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.