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Finding the Fourth Proportional to 256,259.46, 353,659.92 and 143,104.08

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Solution

The fourth proportional to 256,259.46, 353,659.92 and 143,104.08 is: 197,495.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,259.46 : 353,659.92 = 143,104.08 : x
  2. Step 2: Convert to fraction form
    256,259.46/353,659.92 = 143,104.08/x
  3. Step 3: Cross multiply
    256,259.46x = 353,659.92 × 143,104.08
  4. Step 4: Simplify right side
    256,259.46x = 50,610,177,484.47
  5. Step 5: Solve for x
    x = 50,610,177,484.47/256,259.46
  6. Step 6: Final answer
    x = 197,495.84

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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.