Home / 308,979.01-463,515.90-131,438.35

Finding the Fourth Proportional to 308,979.01, 463,515.90 and 131,438.35

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Solution

The fourth proportional to 308,979.01, 463,515.90 and 131,438.35 is: 197,177.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,979.01 : 463,515.90 = 131,438.35 : x
  2. Step 2: Convert to fraction form
    308,979.01/463,515.90 = 131,438.35/x
  3. Step 3: Cross multiply
    308,979.01x = 463,515.90 × 131,438.35
  4. Step 4: Simplify right side
    308,979.01x = 60,923,765,094.77
  5. Step 5: Solve for x
    x = 60,923,765,094.77/308,979.01
  6. Step 6: Final answer
    x = 197,177.68

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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.