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Finding the Fourth Proportional to 291,969.70, 437,711.55 and 123,619.30

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Solution

The fourth proportional to 291,969.70, 437,711.55 and 123,619.30 is: 185,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,969.70 : 437,711.55 = 123,619.30 : x
  2. Step 2: Convert to fraction form
    291,969.70/437,711.55 = 123,619.30/x
  3. Step 3: Cross multiply
    291,969.70x = 437,711.55 × 123,619.30
  4. Step 4: Simplify right side
    291,969.70x = 54,109,595,412.92
  5. Step 5: Solve for x
    x = 54,109,595,412.92/291,969.70
  6. Step 6: Final answer
    x = 185,326.06

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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.