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Finding the Fourth Proportional to 256,673.34, 354,200.31 and 143,495.82

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Solution

The fourth proportional to 256,673.34, 354,200.31 and 143,495.82 is: 198,019.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,673.34 : 354,200.31 = 143,495.82 : x
  2. Step 2: Convert to fraction form
    256,673.34/354,200.31 = 143,495.82/x
  3. Step 3: Cross multiply
    256,673.34x = 354,200.31 × 143,495.82
  4. Step 4: Simplify right side
    256,673.34x = 50,826,263,927.70
  5. Step 5: Solve for x
    x = 50,826,263,927.70/256,673.34
  6. Step 6: Final answer
    x = 198,019.26

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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.