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Finding the Fourth Proportional to 331,332.80, 496,999.20 and 306,975.09

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Solution

The fourth proportional to 331,332.80, 496,999.20 and 306,975.09 is: 460,462.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,332.80 : 496,999.20 = 306,975.09 : x
  2. Step 2: Convert to fraction form
    331,332.80/496,999.20 = 306,975.09/x
  3. Step 3: Cross multiply
    331,332.80x = 496,999.20 × 306,975.09
  4. Step 4: Simplify right side
    331,332.80x = 152,566,374,149.93
  5. Step 5: Solve for x
    x = 152,566,374,149.93/331,332.80
  6. Step 6: Final answer
    x = 460,462.64

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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.