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Finding the Fourth Proportional to 320,464.20, 480,696.30 and 245,814.60

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Solution

The fourth proportional to 320,464.20, 480,696.30 and 245,814.60 is: 368,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,464.20 : 480,696.30 = 245,814.60 : x
  2. Step 2: Convert to fraction form
    320,464.20/480,696.30 = 245,814.60/x
  3. Step 3: Cross multiply
    320,464.20x = 480,696.30 × 245,814.60
  4. Step 4: Simplify right side
    320,464.20x = 118,162,168,705.98
  5. Step 5: Solve for x
    x = 118,162,168,705.98/320,464.20
  6. Step 6: Final answer
    x = 368,721.90

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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.