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Finding the Fourth Proportional to 331,700.05, 497,710.05 and 163,128.93

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Solution

The fourth proportional to 331,700.05, 497,710.05 and 163,128.93 is: 244,772.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,700.05 : 497,710.05 = 163,128.93 : x
  2. Step 2: Convert to fraction form
    331,700.05/497,710.05 = 163,128.93/x
  3. Step 3: Cross multiply
    331,700.05x = 497,710.05 × 163,128.93
  4. Step 4: Simplify right side
    331,700.05x = 81,190,907,906.75
  5. Step 5: Solve for x
    x = 81,190,907,906.75/331,700.05
  6. Step 6: Final answer
    x = 244,772.07

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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.