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Finding the Fourth Proportional to 291,420.94, 436,872.07 and 113,887.57

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Solution

The fourth proportional to 291,420.94, 436,872.07 and 113,887.57 is: 170,730.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,420.94 : 436,872.07 = 113,887.57 : x
  2. Step 2: Convert to fraction form
    291,420.94/436,872.07 = 113,887.57/x
  3. Step 3: Cross multiply
    291,420.94x = 436,872.07 × 113,887.57
  4. Step 4: Simplify right side
    291,420.94x = 49,754,298,453.17
  5. Step 5: Solve for x
    x = 49,754,298,453.17/291,420.94
  6. Step 6: Final answer
    x = 170,730.00

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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.