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Finding the Fourth Proportional to 346,509.90, 519,327.45 and 252,906.30

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Solution

The fourth proportional to 346,509.90, 519,327.45 and 252,906.30 is: 379,040.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,509.90 : 519,327.45 = 252,906.30 : x
  2. Step 2: Convert to fraction form
    346,509.90/519,327.45 = 252,906.30/x
  3. Step 3: Cross multiply
    346,509.90x = 519,327.45 × 252,906.30
  4. Step 4: Simplify right side
    346,509.90x = 131,341,183,867.94
  5. Step 5: Solve for x
    x = 131,341,183,867.94/346,509.90
  6. Step 6: Final answer
    x = 379,040.21

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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.