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Finding the Fourth Proportional to 291,232.90, 436,849.35 and 172,843.30

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Solution

The fourth proportional to 291,232.90, 436,849.35 and 172,843.30 is: 259,264.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,232.90 : 436,849.35 = 172,843.30 : x
  2. Step 2: Convert to fraction form
    291,232.90/436,849.35 = 172,843.30/x
  3. Step 3: Cross multiply
    291,232.90x = 436,849.35 × 172,843.30
  4. Step 4: Simplify right side
    291,232.90x = 75,506,483,256.86
  5. Step 5: Solve for x
    x = 75,506,483,256.86/291,232.90
  6. Step 6: Final answer
    x = 259,264.95

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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.