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Finding the Fourth Proportional to 268,289, 370,238.82 and 155,119.04

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Solution

The fourth proportional to 268,289, 370,238.82 and 155,119.04 is: 214,064.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,289 : 370,238.82 = 155,119.04 : x
  2. Step 2: Convert to fraction form
    268,289/370,238.82 = 155,119.04/x
  3. Step 3: Cross multiply
    268,289x = 370,238.82 × 155,119.04
  4. Step 4: Simplify right side
    268,289x = 57,431,090,329.13
  5. Step 5: Solve for x
    x = 57,431,090,329.13/268,289
  6. Step 6: Final answer
    x = 214,064.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.