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Finding the Fourth Proportional to 330,796.20, 496,259.10 and 141,256.20

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Solution

The fourth proportional to 330,796.20, 496,259.10 and 141,256.20 is: 211,911.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,796.20 : 496,259.10 = 141,256.20 : x
  2. Step 2: Convert to fraction form
    330,796.20/496,259.10 = 141,256.20/x
  3. Step 3: Cross multiply
    330,796.20x = 496,259.10 × 141,256.20
  4. Step 4: Simplify right side
    330,796.20x = 70,099,674,681.42
  5. Step 5: Solve for x
    x = 70,099,674,681.42/330,796.20
  6. Step 6: Final answer
    x = 211,911.97

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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.