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Finding the Fourth Proportional to 219,030.40, 328,675.20 and 159,716.80

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Solution

The fourth proportional to 219,030.40, 328,675.20 and 159,716.80 is: 239,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,030.40 : 328,675.20 = 159,716.80 : x
  2. Step 2: Convert to fraction form
    219,030.40/328,675.20 = 159,716.80/x
  3. Step 3: Cross multiply
    219,030.40x = 328,675.20 × 159,716.80
  4. Step 4: Simplify right side
    219,030.40x = 52,494,951,183.36
  5. Step 5: Solve for x
    x = 52,494,951,183.36/219,030.40
  6. Step 6: Final answer
    x = 239,669.70

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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.