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Finding the Fourth Proportional to 291,617.40, 436,259.70 and 252,607.80

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Solution

The fourth proportional to 291,617.40, 436,259.70 and 252,607.80 is: 377,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,617.40 : 436,259.70 = 252,607.80 : x
  2. Step 2: Convert to fraction form
    291,617.40/436,259.70 = 252,607.80/x
  3. Step 3: Cross multiply
    291,617.40x = 436,259.70 × 252,607.80
  4. Step 4: Simplify right side
    291,617.40x = 110,202,603,045.66
  5. Step 5: Solve for x
    x = 110,202,603,045.66/291,617.40
  6. Step 6: Final answer
    x = 377,901.33

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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.