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Finding the Fourth Proportional to 521,222.04, 781,891.38 and 166,153.68

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Solution

The fourth proportional to 521,222.04, 781,891.38 and 166,153.68 is: 249,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,222.04 : 781,891.38 = 166,153.68 : x
  2. Step 2: Convert to fraction form
    521,222.04/781,891.38 = 166,153.68/x
  3. Step 3: Cross multiply
    521,222.04x = 781,891.38 × 166,153.68
  4. Step 4: Simplify right side
    521,222.04x = 129,914,130,147.28
  5. Step 5: Solve for x
    x = 129,914,130,147.28/521,222.04
  6. Step 6: Final answer
    x = 249,249.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.