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Finding the Fourth Proportional to 270,651.60, 405,948.24 and 70,992

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Solution

The fourth proportional to 270,651.60, 405,948.24 and 70,992 is: 106,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,651.60 : 405,948.24 = 70,992 : x
  2. Step 2: Convert to fraction form
    270,651.60/405,948.24 = 70,992/x
  3. Step 3: Cross multiply
    270,651.60x = 405,948.24 × 70,992
  4. Step 4: Simplify right side
    270,651.60x = 28,819,077,454.08
  5. Step 5: Solve for x
    x = 28,819,077,454.08/270,651.60
  6. Step 6: Final answer
    x = 106,480.35

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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.