Home / 400,088.28-552,121.89-218,800.56

Finding the Fourth Proportional to 400,088.28, 552,121.89 and 218,800.56

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Solution

The fourth proportional to 400,088.28, 552,121.89 and 218,800.56 is: 301,944.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,088.28 : 552,121.89 = 218,800.56 : x
  2. Step 2: Convert to fraction form
    400,088.28/552,121.89 = 218,800.56/x
  3. Step 3: Cross multiply
    400,088.28x = 552,121.89 × 218,800.56
  4. Step 4: Simplify right side
    400,088.28x = 120,804,578,720.26
  5. Step 5: Solve for x
    x = 120,804,578,720.26/400,088.28
  6. Step 6: Final answer
    x = 301,944.81

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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.