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Finding the Fourth Proportional to 291,610.09, 437,415.15 and 69,994.09

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Solution

The fourth proportional to 291,610.09, 437,415.15 and 69,994.09 is: 104,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,610.09 : 437,415.15 = 69,994.09 : x
  2. Step 2: Convert to fraction form
    291,610.09/437,415.15 = 69,994.09/x
  3. Step 3: Cross multiply
    291,610.09x = 437,415.15 × 69,994.09
  4. Step 4: Simplify right side
    291,610.09x = 30,616,475,376.46
  5. Step 5: Solve for x
    x = 30,616,475,376.46/291,610.09
  6. Step 6: Final answer
    x = 104,991.14

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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.