Home / 521,110.82-781,722.87-166,041.38

Finding the Fourth Proportional to 521,110.82, 781,722.87 and 166,041.38

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Solution

The fourth proportional to 521,110.82, 781,722.87 and 166,041.38 is: 249,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,110.82 : 781,722.87 = 166,041.38 : x
  2. Step 2: Convert to fraction form
    521,110.82/781,722.87 = 166,041.38/x
  3. Step 3: Cross multiply
    521,110.82x = 781,722.87 × 166,041.38
  4. Step 4: Simplify right side
    521,110.82x = 129,798,344,112.36
  5. Step 5: Solve for x
    x = 129,798,344,112.36/521,110.82
  6. Step 6: Final answer
    x = 249,080.12

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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.