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Finding the Fourth Proportional to 308,978.01, 463,514.40 and 131,437.35

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Solution

The fourth proportional to 308,978.01, 463,514.40 and 131,437.35 is: 197,176.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,978.01 : 463,514.40 = 131,437.35 : x
  2. Step 2: Convert to fraction form
    308,978.01/463,514.40 = 131,437.35/x
  3. Step 3: Cross multiply
    308,978.01x = 463,514.40 × 131,437.35
  4. Step 4: Simplify right side
    308,978.01x = 60,923,104,422.84
  5. Step 5: Solve for x
    x = 60,923,104,422.84/308,978.01
  6. Step 6: Final answer
    x = 197,176.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.