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Finding the Fourth Proportional to 256,544.88, 354,130.92 and 229,639.92

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Solution

The fourth proportional to 256,544.88, 354,130.92 and 229,639.92 is: 316,991.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,544.88 : 354,130.92 = 229,639.92 : x
  2. Step 2: Convert to fraction form
    256,544.88/354,130.92 = 229,639.92/x
  3. Step 3: Cross multiply
    256,544.88x = 354,130.92 × 229,639.92
  4. Step 4: Simplify right side
    256,544.88x = 81,322,596,138.33
  5. Step 5: Solve for x
    x = 81,322,596,138.33/256,544.88
  6. Step 6: Final answer
    x = 316,991.69

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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.