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Finding the Fourth Proportional to 332,651.60, 498,977.40 and 306,990.80

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Solution

The fourth proportional to 332,651.60, 498,977.40 and 306,990.80 is: 460,486.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,651.60 : 498,977.40 = 306,990.80 : x
  2. Step 2: Convert to fraction form
    332,651.60/498,977.40 = 306,990.80/x
  3. Step 3: Cross multiply
    332,651.60x = 498,977.40 × 306,990.80
  4. Step 4: Simplify right side
    332,651.60x = 153,181,471,207.92
  5. Step 5: Solve for x
    x = 153,181,471,207.92/332,651.60
  6. Step 6: Final answer
    x = 460,486.20

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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.