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Finding the Fourth Proportional to 219,995.52, 330,051.60 and 79,774.80

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Solution

The fourth proportional to 219,995.52, 330,051.60 and 79,774.80 is: 119,683.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,995.52 : 330,051.60 = 79,774.80 : x
  2. Step 2: Convert to fraction form
    219,995.52/330,051.60 = 79,774.80/x
  3. Step 3: Cross multiply
    219,995.52x = 330,051.60 × 79,774.80
  4. Step 4: Simplify right side
    219,995.52x = 26,329,800,379.68
  5. Step 5: Solve for x
    x = 26,329,800,379.68/219,995.52
  6. Step 6: Final answer
    x = 119,683.35

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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.