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Finding the Fourth Proportional to 219,424.40, 329,136.60 and 61,679.60

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Solution

The fourth proportional to 219,424.40, 329,136.60 and 61,679.60 is: 92,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,424.40 : 329,136.60 = 61,679.60 : x
  2. Step 2: Convert to fraction form
    219,424.40/329,136.60 = 61,679.60/x
  3. Step 3: Cross multiply
    219,424.40x = 329,136.60 × 61,679.60
  4. Step 4: Simplify right side
    219,424.40x = 20,301,013,833.36
  5. Step 5: Solve for x
    x = 20,301,013,833.36/219,424.40
  6. Step 6: Final answer
    x = 92,519.40

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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.