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Finding the Fourth Proportional to 245,039.40, 367,073.10 and 215,814.60

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Solution

The fourth proportional to 245,039.40, 367,073.10 and 215,814.60 is: 323,293.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,039.40 : 367,073.10 = 215,814.60 : x
  2. Step 2: Convert to fraction form
    245,039.40/367,073.10 = 215,814.60/x
  3. Step 3: Cross multiply
    245,039.40x = 367,073.10 × 215,814.60
  4. Step 4: Simplify right side
    245,039.40x = 79,219,734,247.26
  5. Step 5: Solve for x
    x = 79,219,734,247.26/245,039.40
  6. Step 6: Final answer
    x = 323,293.86

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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.