Home / 256,875.12-354,504.06-143,698.68

Finding the Fourth Proportional to 256,875.12, 354,504.06 and 143,698.68

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Solution

The fourth proportional to 256,875.12, 354,504.06 and 143,698.68 is: 198,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,875.12 : 354,504.06 = 143,698.68 : x
  2. Step 2: Convert to fraction form
    256,875.12/354,504.06 = 143,698.68/x
  3. Step 3: Cross multiply
    256,875.12x = 354,504.06 × 143,698.68
  4. Step 4: Simplify right side
    256,875.12x = 50,941,765,476.64
  5. Step 5: Solve for x
    x = 50,941,765,476.64/256,875.12
  6. Step 6: Final answer
    x = 198,313.35

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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.