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Finding the Fourth Proportional to 538,536.80, 807,805.20 and 164,511.20

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Solution

The fourth proportional to 538,536.80, 807,805.20 and 164,511.20 is: 246,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,536.80 : 807,805.20 = 164,511.20 : x
  2. Step 2: Convert to fraction form
    538,536.80/807,805.20 = 164,511.20/x
  3. Step 3: Cross multiply
    538,536.80x = 807,805.20 × 164,511.20
  4. Step 4: Simplify right side
    538,536.80x = 132,893,002,818.24
  5. Step 5: Solve for x
    x = 132,893,002,818.24/538,536.80
  6. Step 6: Final answer
    x = 246,766.80

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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.