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Finding the Fourth Proportional to 503,999.40, 755,415.90 and 204,331.80

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Solution

The fourth proportional to 503,999.40, 755,415.90 and 204,331.80 is: 306,261.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,999.40 : 755,415.90 = 204,331.80 : x
  2. Step 2: Convert to fraction form
    503,999.40/755,415.90 = 204,331.80/x
  3. Step 3: Cross multiply
    503,999.40x = 755,415.90 × 204,331.80
  4. Step 4: Simplify right side
    503,999.40x = 154,355,490,595.62
  5. Step 5: Solve for x
    x = 154,355,490,595.62/503,999.40
  6. Step 6: Final answer
    x = 306,261.26

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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.