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Finding the Fourth Proportional to 219,938.60, 330,102.30 and 188,445.80

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Solution

The fourth proportional to 219,938.60, 330,102.30 and 188,445.80 is: 282,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,938.60 : 330,102.30 = 188,445.80 : x
  2. Step 2: Convert to fraction form
    219,938.60/330,102.30 = 188,445.80/x
  3. Step 3: Cross multiply
    219,938.60x = 330,102.30 × 188,445.80
  4. Step 4: Simplify right side
    219,938.60x = 62,206,392,005.34
  5. Step 5: Solve for x
    x = 62,206,392,005.34/219,938.60
  6. Step 6: Final answer
    x = 282,835.26

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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.