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Finding the Fourth Proportional to 240,346.51, 360,519.31 and 90,620.39

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Solution

The fourth proportional to 240,346.51, 360,519.31 and 90,620.39 is: 135,930.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,346.51 : 360,519.31 = 90,620.39 : x
  2. Step 2: Convert to fraction form
    240,346.51/360,519.31 = 90,620.39/x
  3. Step 3: Cross multiply
    240,346.51x = 360,519.31 × 90,620.39
  4. Step 4: Simplify right side
    240,346.51x = 32,670,398,951.64
  5. Step 5: Solve for x
    x = 32,670,398,951.64/240,346.51
  6. Step 6: Final answer
    x = 135,930.41

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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.