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Finding the Fourth Proportional to 378,003.80, 567,005.70 and 218,352.80

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Solution

The fourth proportional to 378,003.80, 567,005.70 and 218,352.80 is: 327,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,003.80 : 567,005.70 = 218,352.80 : x
  2. Step 2: Convert to fraction form
    378,003.80/567,005.70 = 218,352.80/x
  3. Step 3: Cross multiply
    378,003.80x = 567,005.70 × 218,352.80
  4. Step 4: Simplify right side
    378,003.80x = 123,807,282,210.96
  5. Step 5: Solve for x
    x = 123,807,282,210.96/378,003.80
  6. Step 6: Final answer
    x = 327,529.20

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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.