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Finding the Fourth Proportional to 363,431.60, 545,730.60 and 245,625.20

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Solution

The fourth proportional to 363,431.60, 545,730.60 and 245,625.20 is: 368,831.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,431.60 : 545,730.60 = 245,625.20 : x
  2. Step 2: Convert to fraction form
    363,431.60/545,730.60 = 245,625.20/x
  3. Step 3: Cross multiply
    363,431.60x = 545,730.60 × 245,625.20
  4. Step 4: Simplify right side
    363,431.60x = 134,045,187,771.12
  5. Step 5: Solve for x
    x = 134,045,187,771.12/363,431.60
  6. Step 6: Final answer
    x = 368,831.96

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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.