Home / 256,581.12-354,089.28-143,404.08

Finding the Fourth Proportional to 256,581.12, 354,089.28 and 143,404.08

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Solution

The fourth proportional to 256,581.12, 354,089.28 and 143,404.08 is: 197,901.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,581.12 : 354,089.28 = 143,404.08 : x
  2. Step 2: Convert to fraction form
    256,581.12/354,089.28 = 143,404.08/x
  3. Step 3: Cross multiply
    256,581.12x = 354,089.28 × 143,404.08
  4. Step 4: Simplify right side
    256,581.12x = 50,777,847,436.26
  5. Step 5: Solve for x
    x = 50,777,847,436.26/256,581.12
  6. Step 6: Final answer
    x = 197,901.73

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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.