Home / 315,979.20-436,056.48-188,665.92

Finding the Fourth Proportional to 315,979.20, 436,056.48 and 188,665.92

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Solution

The fourth proportional to 315,979.20, 436,056.48 and 188,665.92 is: 260,362.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,979.20 : 436,056.48 = 188,665.92 : x
  2. Step 2: Convert to fraction form
    315,979.20/436,056.48 = 188,665.92/x
  3. Step 3: Cross multiply
    315,979.20x = 436,056.48 × 188,665.92
  4. Step 4: Simplify right side
    315,979.20x = 82,268,996,971.16
  5. Step 5: Solve for x
    x = 82,268,996,971.16/315,979.20
  6. Step 6: Final answer
    x = 260,362.06

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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.