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Finding the Fourth Proportional to 378,000.96, 567,112.18 and 111,768.40

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Solution

The fourth proportional to 378,000.96, 567,112.18 and 111,768.40 is: 167,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,000.96 : 567,112.18 = 111,768.40 : x
  2. Step 2: Convert to fraction form
    378,000.96/567,112.18 = 111,768.40/x
  3. Step 3: Cross multiply
    378,000.96x = 567,112.18 × 111,768.40
  4. Step 4: Simplify right side
    378,000.96x = 63,385,220,979.11
  5. Step 5: Solve for x
    x = 63,385,220,979.11/378,000.96
  6. Step 6: Final answer
    x = 167,685.34

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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.