Home / 400,140.54-552,173.22-218,817.18

Finding the Fourth Proportional to 400,140.54, 552,173.22 and 218,817.18

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Solution

The fourth proportional to 400,140.54, 552,173.22 and 218,817.18 is: 301,956.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,140.54 : 552,173.22 = 218,817.18 : x
  2. Step 2: Convert to fraction form
    400,140.54/552,173.22 = 218,817.18/x
  3. Step 3: Cross multiply
    400,140.54x = 552,173.22 × 218,817.18
  4. Step 4: Simplify right side
    400,140.54x = 120,824,986,871.92
  5. Step 5: Solve for x
    x = 120,824,986,871.92/400,140.54
  6. Step 6: Final answer
    x = 301,956.37

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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.