Home / 331,936.86-497,905.60-142,274.15

Finding the Fourth Proportional to 331,936.86, 497,905.60 and 142,274.15

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Solution

The fourth proportional to 331,936.86, 497,905.60 and 142,274.15 is: 213,411.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,936.86 : 497,905.60 = 142,274.15 : x
  2. Step 2: Convert to fraction form
    331,936.86/497,905.60 = 142,274.15/x
  3. Step 3: Cross multiply
    331,936.86x = 497,905.60 × 142,274.15
  4. Step 4: Simplify right side
    331,936.86x = 70,839,096,020.24
  5. Step 5: Solve for x
    x = 70,839,096,020.24/331,936.86
  6. Step 6: Final answer
    x = 213,411.36

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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.