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Finding the Fourth Proportional to 521,751.57, 782,589.08 and 166,670.25

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Solution

The fourth proportional to 521,751.57, 782,589.08 and 166,670.25 is: 249,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,751.57 : 782,589.08 = 166,670.25 : x
  2. Step 2: Convert to fraction form
    521,751.57/782,589.08 = 166,670.25/x
  3. Step 3: Cross multiply
    521,751.57x = 782,589.08 × 166,670.25
  4. Step 4: Simplify right side
    521,751.57x = 130,434,314,155.32
  5. Step 5: Solve for x
    x = 130,434,314,155.32/521,751.57
  6. Step 6: Final answer
    x = 249,993.14

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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.