Home / 291,517.10-437,470.05-133,664.30

Finding the Fourth Proportional to 291,517.10, 437,470.05 and 133,664.30

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Solution

The fourth proportional to 291,517.10, 437,470.05 and 133,664.30 is: 200,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,517.10 : 437,470.05 = 133,664.30 : x
  2. Step 2: Convert to fraction form
    291,517.10/437,470.05 = 133,664.30/x
  3. Step 3: Cross multiply
    291,517.10x = 437,470.05 × 133,664.30
  4. Step 4: Simplify right side
    291,517.10x = 58,474,128,004.22
  5. Step 5: Solve for x
    x = 58,474,128,004.22/291,517.10
  6. Step 6: Final answer
    x = 200,585.58

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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.