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Finding the Fourth Proportional to 330,835.80, 496,512.90 and 153,364.80

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Solution

The fourth proportional to 330,835.80, 496,512.90 and 153,364.80 is: 230,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,835.80 : 496,512.90 = 153,364.80 : x
  2. Step 2: Convert to fraction form
    330,835.80/496,512.90 = 153,364.80/x
  3. Step 3: Cross multiply
    330,835.80x = 496,512.90 × 153,364.80
  4. Step 4: Simplify right side
    330,835.80x = 76,147,601,605.92
  5. Step 5: Solve for x
    x = 76,147,601,605.92/330,835.80
  6. Step 6: Final answer
    x = 230,167.36

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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.