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Finding the Fourth Proportional to 521,567.40, 782,448.30 and 166,682.10

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Solution

The fourth proportional to 521,567.40, 782,448.30 and 166,682.10 is: 250,054.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,567.40 : 782,448.30 = 166,682.10 : x
  2. Step 2: Convert to fraction form
    521,567.40/782,448.30 = 166,682.10/x
  3. Step 3: Cross multiply
    521,567.40x = 782,448.30 × 166,682.10
  4. Step 4: Simplify right side
    521,567.40x = 130,420,125,785.43
  5. Step 5: Solve for x
    x = 130,420,125,785.43/521,567.40
  6. Step 6: Final answer
    x = 250,054.21

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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.