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Finding the Fourth Proportional to 354,666.60, 531,999.90 and 325,636.20

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Solution

The fourth proportional to 354,666.60, 531,999.90 and 325,636.20 is: 488,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,666.60 : 531,999.90 = 325,636.20 : x
  2. Step 2: Convert to fraction form
    354,666.60/531,999.90 = 325,636.20/x
  3. Step 3: Cross multiply
    354,666.60x = 531,999.90 × 325,636.20
  4. Step 4: Simplify right side
    354,666.60x = 173,238,425,836.38
  5. Step 5: Solve for x
    x = 173,238,425,836.38/354,666.60
  6. Step 6: Final answer
    x = 488,454.30

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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.