Home / 256,212.12-384,551.38-136,369.68

Finding the Fourth Proportional to 256,212.12, 384,551.38 and 136,369.68

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Solution

The fourth proportional to 256,212.12, 384,551.38 and 136,369.68 is: 204,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,212.12 : 384,551.38 = 136,369.68 : x
  2. Step 2: Convert to fraction form
    256,212.12/384,551.38 = 136,369.68/x
  3. Step 3: Cross multiply
    256,212.12x = 384,551.38 × 136,369.68
  4. Step 4: Simplify right side
    256,212.12x = 52,441,148,634.16
  5. Step 5: Solve for x
    x = 52,441,148,634.16/256,212.12
  6. Step 6: Final answer
    x = 204,678.64

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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.