Home / 256,036.12-353,329.61-142,858.87

Finding the Fourth Proportional to 256,036.12, 353,329.61 and 142,858.87

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Solution

The fourth proportional to 256,036.12, 353,329.61 and 142,858.87 is: 197,145.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,036.12 : 353,329.61 = 142,858.87 : x
  2. Step 2: Convert to fraction form
    256,036.12/353,329.61 = 142,858.87/x
  3. Step 3: Cross multiply
    256,036.12x = 353,329.61 × 142,858.87
  4. Step 4: Simplify right side
    256,036.12x = 50,476,268,295.96
  5. Step 5: Solve for x
    x = 50,476,268,295.96/256,036.12
  6. Step 6: Final answer
    x = 197,145.11

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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.