Home / 400,139.14-552,184.20-218,850.49

Finding the Fourth Proportional to 400,139.14, 552,184.20 and 218,850.49

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Solution

The fourth proportional to 400,139.14, 552,184.20 and 218,850.49 is: 302,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,139.14 : 552,184.20 = 218,850.49 : x
  2. Step 2: Convert to fraction form
    400,139.14/552,184.20 = 218,850.49/x
  3. Step 3: Cross multiply
    400,139.14x = 552,184.20 × 218,850.49
  4. Step 4: Simplify right side
    400,139.14x = 120,845,782,740.26
  5. Step 5: Solve for x
    x = 120,845,782,740.26/400,139.14
  6. Step 6: Final answer
    x = 302,009.40

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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.