Home / 291,330.90-436,996.35-172,941.30

Finding the Fourth Proportional to 291,330.90, 436,996.35 and 172,941.30

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Solution

The fourth proportional to 291,330.90, 436,996.35 and 172,941.30 is: 259,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,330.90 : 436,996.35 = 172,941.30 : x
  2. Step 2: Convert to fraction form
    291,330.90/436,996.35 = 172,941.30/x
  3. Step 3: Cross multiply
    291,330.90x = 436,996.35 × 172,941.30
  4. Step 4: Simplify right side
    291,330.90x = 75,574,716,864.26
  5. Step 5: Solve for x
    x = 75,574,716,864.26/291,330.90
  6. Step 6: Final answer
    x = 259,411.95

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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.