Home / 400,127.28-552,155.18-218,803.97

Finding the Fourth Proportional to 400,127.28, 552,155.18 and 218,803.97

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Solution

The fourth proportional to 400,127.28, 552,155.18 and 218,803.97 is: 301,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,127.28 : 552,155.18 = 218,803.97 : x
  2. Step 2: Convert to fraction form
    400,127.28/552,155.18 = 218,803.97/x
  3. Step 3: Cross multiply
    400,127.28x = 552,155.18 × 218,803.97
  4. Step 4: Simplify right side
    400,127.28x = 120,813,741,585.27
  5. Step 5: Solve for x
    x = 120,813,741,585.27/400,127.28
  6. Step 6: Final answer
    x = 301,938.28

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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.