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Finding the Fourth Proportional to 254,800.80, 382,201.20 and 219,808.80

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Solution

The fourth proportional to 254,800.80, 382,201.20 and 219,808.80 is: 329,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,800.80 : 382,201.20 = 219,808.80 : x
  2. Step 2: Convert to fraction form
    254,800.80/382,201.20 = 219,808.80/x
  3. Step 3: Cross multiply
    254,800.80x = 382,201.20 × 219,808.80
  4. Step 4: Simplify right side
    254,800.80x = 84,011,187,130.56
  5. Step 5: Solve for x
    x = 84,011,187,130.56/254,800.80
  6. Step 6: Final answer
    x = 329,713.20

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1.5x scale

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.