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Finding the Fourth Proportional to 256,866.02, 354,493.80 and 143,725.22

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Solution

The fourth proportional to 256,866.02, 354,493.80 and 143,725.22 is: 198,351.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,866.02 : 354,493.80 = 143,725.22 : x
  2. Step 2: Convert to fraction form
    256,866.02/354,493.80 = 143,725.22/x
  3. Step 3: Cross multiply
    256,866.02x = 354,493.80 × 143,725.22
  4. Step 4: Simplify right side
    256,866.02x = 50,949,699,393.64
  5. Step 5: Solve for x
    x = 50,949,699,393.64/256,866.02
  6. Step 6: Final answer
    x = 198,351.26

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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.