Home / 219,405.51-302,776.08-122,610.71

Finding the Fourth Proportional to 219,405.51, 302,776.08 and 122,610.71

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Solution

The fourth proportional to 219,405.51, 302,776.08 and 122,610.71 is: 169,200.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,405.51 : 302,776.08 = 122,610.71 : x
  2. Step 2: Convert to fraction form
    219,405.51/302,776.08 = 122,610.71/x
  3. Step 3: Cross multiply
    219,405.51x = 302,776.08 × 122,610.71
  4. Step 4: Simplify right side
    219,405.51x = 37,123,590,436.97
  5. Step 5: Solve for x
    x = 37,123,590,436.97/219,405.51
  6. Step 6: Final answer
    x = 169,200.81

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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.