Home / 256,536.32-384,811.05-121,568.72

Finding the Fourth Proportional to 256,536.32, 384,811.05 and 121,568.72

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Solution

The fourth proportional to 256,536.32, 384,811.05 and 121,568.72 is: 182,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,536.32 : 384,811.05 = 121,568.72 : x
  2. Step 2: Convert to fraction form
    256,536.32/384,811.05 = 121,568.72/x
  3. Step 3: Cross multiply
    256,536.32x = 384,811.05 × 121,568.72
  4. Step 4: Simplify right side
    256,536.32x = 46,780,986,790.36
  5. Step 5: Solve for x
    x = 46,780,986,790.36/256,536.32
  6. Step 6: Final answer
    x = 182,356.19

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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.