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Finding the Fourth Proportional to 219,645.60, 328,739.40 and 159,503.10

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Solution

The fourth proportional to 219,645.60, 328,739.40 and 159,503.10 is: 238,725.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,645.60 : 328,739.40 = 159,503.10 : x
  2. Step 2: Convert to fraction form
    219,645.60/328,739.40 = 159,503.10/x
  3. Step 3: Cross multiply
    219,645.60x = 328,739.40 × 159,503.10
  4. Step 4: Simplify right side
    219,645.60x = 52,434,953,392.14
  5. Step 5: Solve for x
    x = 52,434,953,392.14/219,645.60
  6. Step 6: Final answer
    x = 238,725.26

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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.