Home / 357,015.36-492,696-204,078.72

Finding the Fourth Proportional to 357,015.36, 492,696 and 204,078.72

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Solution

The fourth proportional to 357,015.36, 492,696 and 204,078.72 is: 281,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,015.36 : 492,696 = 204,078.72 : x
  2. Step 2: Convert to fraction form
    357,015.36/492,696 = 204,078.72/x
  3. Step 3: Cross multiply
    357,015.36x = 492,696 × 204,078.72
  4. Step 4: Simplify right side
    357,015.36x = 100,548,769,029.12
  5. Step 5: Solve for x
    x = 100,548,769,029.12/357,015.36
  6. Step 6: Final answer
    x = 281,637.10

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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.