Home / 331,290.40-496,935.60-314,183.20

Finding the Fourth Proportional to 331,290.40, 496,935.60 and 314,183.20

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Solution

The fourth proportional to 331,290.40, 496,935.60 and 314,183.20 is: 471,274.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,290.40 : 496,935.60 = 314,183.20 : x
  2. Step 2: Convert to fraction form
    331,290.40/496,935.60 = 314,183.20/x
  3. Step 3: Cross multiply
    331,290.40x = 496,935.60 × 314,183.20
  4. Step 4: Simplify right side
    331,290.40x = 156,128,817,001.92
  5. Step 5: Solve for x
    x = 156,128,817,001.92/331,290.40
  6. Step 6: Final answer
    x = 471,274.80

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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.