Home / 291,214.90-436,822.35-172,825.30

Finding the Fourth Proportional to 291,214.90, 436,822.35 and 172,825.30

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Solution

The fourth proportional to 291,214.90, 436,822.35 and 172,825.30 is: 259,237.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,214.90 : 436,822.35 = 172,825.30 : x
  2. Step 2: Convert to fraction form
    291,214.90/436,822.35 = 172,825.30/x
  3. Step 3: Cross multiply
    291,214.90x = 436,822.35 × 172,825.30
  4. Step 4: Simplify right side
    291,214.90x = 75,493,953,685.46
  5. Step 5: Solve for x
    x = 75,493,953,685.46/291,214.90
  6. Step 6: Final answer
    x = 259,237.95

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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.