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Finding the Fourth Proportional to 240,341.82, 360,486.78 and 80,399.64

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Solution

The fourth proportional to 240,341.82, 360,486.78 and 80,399.64 is: 120,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,341.82 : 360,486.78 = 80,399.64 : x
  2. Step 2: Convert to fraction form
    240,341.82/360,486.78 = 80,399.64/x
  3. Step 3: Cross multiply
    240,341.82x = 360,486.78 × 80,399.64
  4. Step 4: Simplify right side
    240,341.82x = 28,983,007,336.76
  5. Step 5: Solve for x
    x = 28,983,007,336.76/240,341.82
  6. Step 6: Final answer
    x = 120,590.78

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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.