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Finding the Fourth Proportional to 219,321.40, 328,544.70 and 152,836.60

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Solution

The fourth proportional to 219,321.40, 328,544.70 and 152,836.60 is: 228,950.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,321.40 : 328,544.70 = 152,836.60 : x
  2. Step 2: Convert to fraction form
    219,321.40/328,544.70 = 152,836.60/x
  3. Step 3: Cross multiply
    219,321.40x = 328,544.70 × 152,836.60
  4. Step 4: Simplify right side
    219,321.40x = 50,213,654,896.02
  5. Step 5: Solve for x
    x = 50,213,654,896.02/219,321.40
  6. Step 6: Final answer
    x = 228,950.09

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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.