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Finding the Fourth Proportional to 521,367.04, 782,112.12 and 166,256.56

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Solution

The fourth proportional to 521,367.04, 782,112.12 and 166,256.56 is: 249,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,367.04 : 782,112.12 = 166,256.56 : x
  2. Step 2: Convert to fraction form
    521,367.04/782,112.12 = 166,256.56/x
  3. Step 3: Cross multiply
    521,367.04x = 782,112.12 × 166,256.56
  4. Step 4: Simplify right side
    521,367.04x = 130,031,270,605.51
  5. Step 5: Solve for x
    x = 130,031,270,605.51/521,367.04
  6. Step 6: Final answer
    x = 249,404.47

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1.5x scale

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.