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Finding the Fourth Proportional to 378,029.04, 567,120.06 and 111,783.66

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Solution

The fourth proportional to 378,029.04, 567,120.06 and 111,783.66 is: 167,698.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,029.04 : 567,120.06 = 111,783.66 : x
  2. Step 2: Convert to fraction form
    378,029.04/567,120.06 = 111,783.66/x
  3. Step 3: Cross multiply
    378,029.04x = 567,120.06 × 111,783.66
  4. Step 4: Simplify right side
    378,029.04x = 63,394,755,966.22
  5. Step 5: Solve for x
    x = 63,394,755,966.22/378,029.04
  6. Step 6: Final answer
    x = 167,698.11

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1.5x scale

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.