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Finding the Fourth Proportional to 363,872.40, 545,808.60 and 306,135.60

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Solution

The fourth proportional to 363,872.40, 545,808.60 and 306,135.60 is: 459,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,872.40 : 545,808.60 = 306,135.60 : x
  2. Step 2: Convert to fraction form
    363,872.40/545,808.60 = 306,135.60/x
  3. Step 3: Cross multiply
    363,872.40x = 545,808.60 × 306,135.60
  4. Step 4: Simplify right side
    363,872.40x = 167,091,443,246.16
  5. Step 5: Solve for x
    x = 167,091,443,246.16/363,872.40
  6. Step 6: Final answer
    x = 459,203.40

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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.