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Finding the Fourth Proportional to 291,666.99, 437,188.49 and 208,308.27

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Solution

The fourth proportional to 291,666.99, 437,188.49 and 208,308.27 is: 312,239.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,666.99 : 437,188.49 = 208,308.27 : x
  2. Step 2: Convert to fraction form
    291,666.99/437,188.49 = 208,308.27/x
  3. Step 3: Cross multiply
    291,666.99x = 437,188.49 × 208,308.27
  4. Step 4: Simplify right side
    291,666.99x = 91,069,976,974.27
  5. Step 5: Solve for x
    x = 91,069,976,974.27/291,666.99
  6. Step 6: Final answer
    x = 312,239.57

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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.