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Finding the Fourth Proportional to 521,474.56, 782,225.34 and 166,488.28

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Solution

The fourth proportional to 521,474.56, 782,225.34 and 166,488.28 is: 249,736.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,474.56 : 782,225.34 = 166,488.28 : x
  2. Step 2: Convert to fraction form
    521,474.56/782,225.34 = 166,488.28/x
  3. Step 3: Cross multiply
    521,474.56x = 782,225.34 × 166,488.28
  4. Step 4: Simplify right side
    521,474.56x = 130,231,351,429.02
  5. Step 5: Solve for x
    x = 130,231,351,429.02/521,474.56
  6. Step 6: Final answer
    x = 249,736.73

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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.