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Finding the Fourth Proportional to 351,327.76, 525,958.08 and 217,779.28

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Solution

The fourth proportional to 351,327.76, 525,958.08 and 217,779.28 is: 326,028.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,327.76 : 525,958.08 = 217,779.28 : x
  2. Step 2: Convert to fraction form
    351,327.76/525,958.08 = 217,779.28/x
  3. Step 3: Cross multiply
    351,327.76x = 525,958.08 × 217,779.28
  4. Step 4: Simplify right side
    351,327.76x = 114,542,771,972.58
  5. Step 5: Solve for x
    x = 114,542,771,972.58/351,327.76
  6. Step 6: Final answer
    x = 326,028.24

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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.