Home / 256,895.60-385,343.40-109,151.60

Finding the Fourth Proportional to 256,895.60, 385,343.40 and 109,151.60

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Solution

The fourth proportional to 256,895.60, 385,343.40 and 109,151.60 is: 163,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,895.60 : 385,343.40 = 109,151.60 : x
  2. Step 2: Convert to fraction form
    256,895.60/385,343.40 = 109,151.60/x
  3. Step 3: Cross multiply
    256,895.60x = 385,343.40 × 109,151.60
  4. Step 4: Simplify right side
    256,895.60x = 42,060,848,659.44
  5. Step 5: Solve for x
    x = 42,060,848,659.44/256,895.60
  6. Step 6: Final answer
    x = 163,727.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.