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Finding the Fourth Proportional to 219,212.85, 302,483.39 and 122,404.89

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Solution

The fourth proportional to 219,212.85, 302,483.39 and 122,404.89 is: 168,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,212.85 : 302,483.39 = 122,404.89 : x
  2. Step 2: Convert to fraction form
    219,212.85/302,483.39 = 122,404.89/x
  3. Step 3: Cross multiply
    219,212.85x = 302,483.39 × 122,404.89
  4. Step 4: Simplify right side
    219,212.85x = 37,025,445,467.75
  5. Step 5: Solve for x
    x = 37,025,445,467.75/219,212.85
  6. Step 6: Final answer
    x = 168,901.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.