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Finding the Fourth Proportional to 270,604.40, 405,932.20 and 73,612.40

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Solution

The fourth proportional to 270,604.40, 405,932.20 and 73,612.40 is: 110,425.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,604.40 : 405,932.20 = 73,612.40 : x
  2. Step 2: Convert to fraction form
    270,604.40/405,932.20 = 73,612.40/x
  3. Step 3: Cross multiply
    270,604.40x = 405,932.20 × 73,612.40
  4. Step 4: Simplify right side
    270,604.40x = 29,881,643,479.28
  5. Step 5: Solve for x
    x = 29,881,643,479.28/270,604.40
  6. Step 6: Final answer
    x = 110,425.56

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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.