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Finding the Fourth Proportional to 378,005.40, 567,008.10 and 168,053.40

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Solution

The fourth proportional to 378,005.40, 567,008.10 and 168,053.40 is: 252,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,005.40 : 567,008.10 = 168,053.40 : x
  2. Step 2: Convert to fraction form
    378,005.40/567,008.10 = 168,053.40/x
  3. Step 3: Cross multiply
    378,005.40x = 567,008.10 × 168,053.40
  4. Step 4: Simplify right side
    378,005.40x = 95,287,639,032.54
  5. Step 5: Solve for x
    x = 95,287,639,032.54/378,005.40
  6. Step 6: Final answer
    x = 252,080.10

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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.