Home / 256,836.96-354,452.40-143,670.24

Finding the Fourth Proportional to 256,836.96, 354,452.40 and 143,670.24

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Solution

The fourth proportional to 256,836.96, 354,452.40 and 143,670.24 is: 198,274.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,836.96 : 354,452.40 = 143,670.24 : x
  2. Step 2: Convert to fraction form
    256,836.96/354,452.40 = 143,670.24/x
  3. Step 3: Cross multiply
    256,836.96x = 354,452.40 × 143,670.24
  4. Step 4: Simplify right side
    256,836.96x = 50,924,261,376.58
  5. Step 5: Solve for x
    x = 50,924,261,376.58/256,836.96
  6. Step 6: Final answer
    x = 198,274.66

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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.