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Finding the Fourth Proportional to 219,636.60, 329,454.90 and 53,424.60

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Solution

The fourth proportional to 219,636.60, 329,454.90 and 53,424.60 is: 80,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,636.60 : 329,454.90 = 53,424.60 : x
  2. Step 2: Convert to fraction form
    219,636.60/329,454.90 = 53,424.60/x
  3. Step 3: Cross multiply
    219,636.60x = 329,454.90 × 53,424.60
  4. Step 4: Simplify right side
    219,636.60x = 17,600,996,250.54
  5. Step 5: Solve for x
    x = 17,600,996,250.54/219,636.60
  6. Step 6: Final answer
    x = 80,136.90

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1.5x scale

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.