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Finding the Fourth Proportional to 256,667.01, 354,202.68 and 143,489.76

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Solution

The fourth proportional to 256,667.01, 354,202.68 and 143,489.76 is: 198,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,667.01 : 354,202.68 = 143,489.76 : x
  2. Step 2: Convert to fraction form
    256,667.01/354,202.68 = 143,489.76/x
  3. Step 3: Cross multiply
    256,667.01x = 354,202.68 × 143,489.76
  4. Step 4: Simplify right side
    256,667.01x = 50,824,457,544.56
  5. Step 5: Solve for x
    x = 50,824,457,544.56/256,667.01
  6. Step 6: Final answer
    x = 198,017.10

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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.