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Finding the Fourth Proportional to 478,993.60, 718,512.48 and 163,453.60

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Solution

The fourth proportional to 478,993.60, 718,512.48 and 163,453.60 is: 245,187.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,993.60 : 718,512.48 = 163,453.60 : x
  2. Step 2: Convert to fraction form
    478,993.60/718,512.48 = 163,453.60/x
  3. Step 3: Cross multiply
    478,993.60x = 718,512.48 × 163,453.60
  4. Step 4: Simplify right side
    478,993.60x = 117,443,451,500.93
  5. Step 5: Solve for x
    x = 117,443,451,500.93/478,993.60
  6. Step 6: Final answer
    x = 245,187.93

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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.