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Finding the Fourth Proportional to 400,053.69, 552,073.86 and 218,765.62

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Solution

The fourth proportional to 400,053.69, 552,073.86 and 218,765.62 is: 301,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,053.69 : 552,073.86 = 218,765.62 : x
  2. Step 2: Convert to fraction form
    400,053.69/552,073.86 = 218,765.62/x
  3. Step 3: Cross multiply
    400,053.69x = 552,073.86 × 218,765.62
  4. Step 4: Simplify right side
    400,053.69x = 120,774,782,438.21
  5. Step 5: Solve for x
    x = 120,774,782,438.21/400,053.69
  6. Step 6: Final answer
    x = 301,896.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.