Home / 291,421.19-436,872.45-113,887.82

Finding the Fourth Proportional to 291,421.19, 436,872.45 and 113,887.82

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Solution

The fourth proportional to 291,421.19, 436,872.45 and 113,887.82 is: 170,730.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,421.19 : 436,872.45 = 113,887.82 : x
  2. Step 2: Convert to fraction form
    291,421.19/436,872.45 = 113,887.82/x
  3. Step 3: Cross multiply
    291,421.19x = 436,872.45 × 113,887.82
  4. Step 4: Simplify right side
    291,421.19x = 49,754,450,948.56
  5. Step 5: Solve for x
    x = 49,754,450,948.56/291,421.19
  6. Step 6: Final answer
    x = 170,730.38

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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.