Home / 330,769.89-496,271.48-120,429.09

Finding the Fourth Proportional to 330,769.89, 496,271.48 and 120,429.09

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Solution

The fourth proportional to 330,769.89, 496,271.48 and 120,429.09 is: 180,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,769.89 : 496,271.48 = 120,429.09 : x
  2. Step 2: Convert to fraction form
    330,769.89/496,271.48 = 120,429.09/x
  3. Step 3: Cross multiply
    330,769.89x = 496,271.48 × 120,429.09
  4. Step 4: Simplify right side
    330,769.89x = 59,765,522,127.21
  5. Step 5: Solve for x
    x = 59,765,522,127.21/330,769.89
  6. Step 6: Final answer
    x = 180,686.10

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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.