Home / 291,284.90-436,927.35-172,895.30

Finding the Fourth Proportional to 291,284.90, 436,927.35 and 172,895.30

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Solution

The fourth proportional to 291,284.90, 436,927.35 and 172,895.30 is: 259,342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,284.90 : 436,927.35 = 172,895.30 : x
  2. Step 2: Convert to fraction form
    291,284.90/436,927.35 = 172,895.30/x
  3. Step 3: Cross multiply
    291,284.90x = 436,927.35 × 172,895.30
  4. Step 4: Simplify right side
    291,284.90x = 75,542,685,256.46
  5. Step 5: Solve for x
    x = 75,542,685,256.46/291,284.90
  6. Step 6: Final answer
    x = 259,342.95

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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.