Home / 256,537.46-354,022.18-143,360.21

Finding the Fourth Proportional to 256,537.46, 354,022.18 and 143,360.21

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Solution

The fourth proportional to 256,537.46, 354,022.18 and 143,360.21 is: 197,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,537.46 : 354,022.18 = 143,360.21 : x
  2. Step 2: Convert to fraction form
    256,537.46/354,022.18 = 143,360.21/x
  3. Step 3: Cross multiply
    256,537.46x = 354,022.18 × 143,360.21
  4. Step 4: Simplify right side
    256,537.46x = 50,752,693,352.66
  5. Step 5: Solve for x
    x = 50,752,693,352.66/256,537.46
  6. Step 6: Final answer
    x = 197,837.36

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1.5x scale

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.