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Finding the Fourth Proportional to 256,535.82, 384,810.30 and 121,568.22

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Solution

The fourth proportional to 256,535.82, 384,810.30 and 121,568.22 is: 182,355.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,535.82 : 384,810.30 = 121,568.22 : x
  2. Step 2: Convert to fraction form
    256,535.82/384,810.30 = 121,568.22/x
  3. Step 3: Cross multiply
    256,535.82x = 384,810.30 × 121,568.22
  4. Step 4: Simplify right side
    256,535.82x = 46,780,703,208.67
  5. Step 5: Solve for x
    x = 46,780,703,208.67/256,535.82
  6. Step 6: Final answer
    x = 182,355.44

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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.