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Finding the Fourth Proportional to 331,330.80, 496,996.20 and 306,973.09

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Solution

The fourth proportional to 331,330.80, 496,996.20 and 306,973.09 is: 460,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,330.80 : 496,996.20 = 306,973.09 : x
  2. Step 2: Convert to fraction form
    331,330.80/496,996.20 = 306,973.09/x
  3. Step 3: Cross multiply
    331,330.80x = 496,996.20 × 306,973.09
  4. Step 4: Simplify right side
    331,330.80x = 152,564,457,989.77
  5. Step 5: Solve for x
    x = 152,564,457,989.77/331,330.80
  6. Step 6: Final answer
    x = 460,459.63

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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.