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Finding the Fourth Proportional to 330,816.80, 496,484.40 and 153,345.80

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Solution

The fourth proportional to 330,816.80, 496,484.40 and 153,345.80 is: 230,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,816.80 : 496,484.40 = 153,345.80 : x
  2. Step 2: Convert to fraction form
    330,816.80/496,484.40 = 153,345.80/x
  3. Step 3: Cross multiply
    330,816.80x = 496,484.40 × 153,345.80
  4. Step 4: Simplify right side
    330,816.80x = 76,133,797,505.52
  5. Step 5: Solve for x
    x = 76,133,797,505.52/330,816.80
  6. Step 6: Final answer
    x = 230,138.85

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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.