Home / 330,861.21-496,252.26-90,999.51

Finding the Fourth Proportional to 330,861.21, 496,252.26 and 90,999.51

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Solution

The fourth proportional to 330,861.21, 496,252.26 and 90,999.51 is: 136,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,861.21 : 496,252.26 = 90,999.51 : x
  2. Step 2: Convert to fraction form
    330,861.21/496,252.26 = 90,999.51/x
  3. Step 3: Cross multiply
    330,861.21x = 496,252.26 × 90,999.51
  4. Step 4: Simplify right side
    330,861.21x = 45,158,712,496.39
  5. Step 5: Solve for x
    x = 45,158,712,496.39/330,861.21
  6. Step 6: Final answer
    x = 136,488.39

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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.