Home / 219,025.20-328,537.80-52,813.20

Finding the Fourth Proportional to 219,025.20, 328,537.80 and 52,813.20

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Solution

The fourth proportional to 219,025.20, 328,537.80 and 52,813.20 is: 79,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,025.20 : 328,537.80 = 52,813.20 : x
  2. Step 2: Convert to fraction form
    219,025.20/328,537.80 = 52,813.20/x
  3. Step 3: Cross multiply
    219,025.20x = 328,537.80 × 52,813.20
  4. Step 4: Simplify right side
    219,025.20x = 17,351,132,538.96
  5. Step 5: Solve for x
    x = 17,351,132,538.96/219,025.20
  6. Step 6: Final answer
    x = 79,219.80

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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.