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Finding the Fourth Proportional to 255,213.68, 382,820.66 and 114,808.28

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Solution

The fourth proportional to 255,213.68, 382,820.66 and 114,808.28 is: 172,212.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,213.68 : 382,820.66 = 114,808.28 : x
  2. Step 2: Convert to fraction form
    255,213.68/382,820.66 = 114,808.28/x
  3. Step 3: Cross multiply
    255,213.68x = 382,820.66 × 114,808.28
  4. Step 4: Simplify right side
    255,213.68x = 43,950,981,523.06
  5. Step 5: Solve for x
    x = 43,950,981,523.06/255,213.68
  6. Step 6: Final answer
    x = 172,212.48

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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.