Home / 379,507.32-569,195.10-142,851.78

Finding the Fourth Proportional to 379,507.32, 569,195.10 and 142,851.78

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Solution

The fourth proportional to 379,507.32, 569,195.10 and 142,851.78 is: 214,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,507.32 : 569,195.10 = 142,851.78 : x
  2. Step 2: Convert to fraction form
    379,507.32/569,195.10 = 142,851.78/x
  3. Step 3: Cross multiply
    379,507.32x = 569,195.10 × 142,851.78
  4. Step 4: Simplify right side
    379,507.32x = 81,310,533,202.28
  5. Step 5: Solve for x
    x = 81,310,533,202.28/379,507.32
  6. Step 6: Final answer
    x = 214,252.87

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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.