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Finding the Fourth Proportional to 330,752.40, 496,420.20 and 283,513.20

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Solution

The fourth proportional to 330,752.40, 496,420.20 and 283,513.20 is: 425,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,752.40 : 496,420.20 = 283,513.20 : x
  2. Step 2: Convert to fraction form
    330,752.40/496,420.20 = 283,513.20/x
  3. Step 3: Cross multiply
    330,752.40x = 496,420.20 × 283,513.20
  4. Step 4: Simplify right side
    330,752.40x = 140,741,679,446.64
  5. Step 5: Solve for x
    x = 140,741,679,446.64/330,752.40
  6. Step 6: Final answer
    x = 425,519.75

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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.