Home / 380,256.38-570,945.29-212,105.24

Finding the Fourth Proportional to 380,256.38, 570,945.29 and 212,105.24

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Solution

The fourth proportional to 380,256.38, 570,945.29 and 212,105.24 is: 318,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,256.38 : 570,945.29 = 212,105.24 : x
  2. Step 2: Convert to fraction form
    380,256.38/570,945.29 = 212,105.24/x
  3. Step 3: Cross multiply
    380,256.38x = 570,945.29 × 212,105.24
  4. Step 4: Simplify right side
    380,256.38x = 121,100,483,847.07
  5. Step 5: Solve for x
    x = 121,100,483,847.07/380,256.38
  6. Step 6: Final answer
    x = 318,470.62

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1.5x scale

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.