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Finding the Fourth Proportional to 202,386.51, 303,584.63 and 69,265.89

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Solution

The fourth proportional to 202,386.51, 303,584.63 and 69,265.89 is: 103,900.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,386.51 : 303,584.63 = 69,265.89 : x
  2. Step 2: Convert to fraction form
    202,386.51/303,584.63 = 69,265.89/x
  3. Step 3: Cross multiply
    202,386.51x = 303,584.63 × 69,265.89
  4. Step 4: Simplify right side
    202,386.51x = 21,028,059,240.94
  5. Step 5: Solve for x
    x = 21,028,059,240.94/202,386.51
  6. Step 6: Final answer
    x = 103,900.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.