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Finding the Fourth Proportional to 402,194.82, 555,033.41 and 220,911.00

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Solution

The fourth proportional to 402,194.82, 555,033.41 and 220,911.00 is: 304,859.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,194.82 : 555,033.41 = 220,911.00 : x
  2. Step 2: Convert to fraction form
    402,194.82/555,033.41 = 220,911.00/x
  3. Step 3: Cross multiply
    402,194.82x = 555,033.41 × 220,911.00
  4. Step 4: Simplify right side
    402,194.82x = 122,612,984,521.62
  5. Step 5: Solve for x
    x = 122,612,984,521.62/402,194.82
  6. Step 6: Final answer
    x = 304,859.68

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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.