Home / 256,557.75-354,060.63-143,380.50

Finding the Fourth Proportional to 256,557.75, 354,060.63 and 143,380.50

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Solution

The fourth proportional to 256,557.75, 354,060.63 and 143,380.50 is: 197,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,557.75 : 354,060.63 = 143,380.50 : x
  2. Step 2: Convert to fraction form
    256,557.75/354,060.63 = 143,380.50/x
  3. Step 3: Cross multiply
    256,557.75x = 354,060.63 × 143,380.50
  4. Step 4: Simplify right side
    256,557.75x = 50,765,390,159.72
  5. Step 5: Solve for x
    x = 50,765,390,159.72/256,557.75
  6. Step 6: Final answer
    x = 197,871.20

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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.