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Finding the Fourth Proportional to 202,918.29, 304,290.87 and 69,812.01

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Solution

The fourth proportional to 202,918.29, 304,290.87 and 69,812.01 is: 104,688.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,918.29 : 304,290.87 = 69,812.01 : x
  2. Step 2: Convert to fraction form
    202,918.29/304,290.87 = 69,812.01/x
  3. Step 3: Cross multiply
    202,918.29x = 304,290.87 × 69,812.01
  4. Step 4: Simplify right side
    202,918.29x = 21,243,157,259.35
  5. Step 5: Solve for x
    x = 21,243,157,259.35/202,918.29
  6. Step 6: Final answer
    x = 104,688.23

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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.