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Finding the Fourth Proportional to 265,501.20, 398,251.80 and 123,346.20

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Solution

The fourth proportional to 265,501.20, 398,251.80 and 123,346.20 is: 185,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,501.20 : 398,251.80 = 123,346.20 : x
  2. Step 2: Convert to fraction form
    265,501.20/398,251.80 = 123,346.20/x
  3. Step 3: Cross multiply
    265,501.20x = 398,251.80 × 123,346.20
  4. Step 4: Simplify right side
    265,501.20x = 49,122,846,173.16
  5. Step 5: Solve for x
    x = 49,122,846,173.16/265,501.20
  6. Step 6: Final answer
    x = 185,019.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.