Home / 400,021.52-552,029.64-218,733.57

Finding the Fourth Proportional to 400,021.52, 552,029.64 and 218,733.57

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Solution

The fourth proportional to 400,021.52, 552,029.64 and 218,733.57 is: 301,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,021.52 : 552,029.64 = 218,733.57 : x
  2. Step 2: Convert to fraction form
    400,021.52/552,029.64 = 218,733.57/x
  3. Step 3: Cross multiply
    400,021.52x = 552,029.64 × 218,733.57
  4. Step 4: Simplify right side
    400,021.52x = 120,747,413,903.02
  5. Step 5: Solve for x
    x = 120,747,413,903.02/400,021.52
  6. Step 6: Final answer
    x = 301,852.30

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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.