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Finding the Fourth Proportional to 219,965.57, 330,073.19 and 118,762.28

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Solution

The fourth proportional to 219,965.57, 330,073.19 and 118,762.28 is: 178,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,965.57 : 330,073.19 = 118,762.28 : x
  2. Step 2: Convert to fraction form
    219,965.57/330,073.19 = 118,762.28/x
  3. Step 3: Cross multiply
    219,965.57x = 330,073.19 × 118,762.28
  4. Step 4: Simplify right side
    219,965.57x = 39,200,243,288.91
  5. Step 5: Solve for x
    x = 39,200,243,288.91/219,965.57
  6. Step 6: Final answer
    x = 178,210.81

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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.