Home / 400,022.78-552,031.37-218,734.82

Finding the Fourth Proportional to 400,022.78, 552,031.37 and 218,734.82

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Solution

The fourth proportional to 400,022.78, 552,031.37 and 218,734.82 is: 301,854.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,022.78 : 552,031.37 = 218,734.82 : x
  2. Step 2: Convert to fraction form
    400,022.78/552,031.37 = 218,734.82/x
  3. Step 3: Cross multiply
    400,022.78x = 552,031.37 × 218,734.82
  4. Step 4: Simplify right side
    400,022.78x = 120,748,478,497.47
  5. Step 5: Solve for x
    x = 120,748,478,497.47/400,022.78
  6. Step 6: Final answer
    x = 301,854.01

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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.