Home / 217,761.24-300,510.09-122,268.45

Finding the Fourth Proportional to 217,761.24, 300,510.09 and 122,268.45

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Solution

The fourth proportional to 217,761.24, 300,510.09 and 122,268.45 is: 168,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,761.24 : 300,510.09 = 122,268.45 : x
  2. Step 2: Convert to fraction form
    217,761.24/300,510.09 = 122,268.45/x
  3. Step 3: Cross multiply
    217,761.24x = 300,510.09 × 122,268.45
  4. Step 4: Simplify right side
    217,761.24x = 36,742,902,913.66
  5. Step 5: Solve for x
    x = 36,742,902,913.66/217,761.24
  6. Step 6: Final answer
    x = 168,730.22

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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.