Home / 219,114.20-328,574.10-100,821.80

Finding the Fourth Proportional to 219,114.20, 328,574.10 and 100,821.80

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Solution

The fourth proportional to 219,114.20, 328,574.10 and 100,821.80 is: 151,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,114.20 : 328,574.10 = 100,821.80 : x
  2. Step 2: Convert to fraction form
    219,114.20/328,574.10 = 100,821.80/x
  3. Step 3: Cross multiply
    219,114.20x = 328,574.10 × 100,821.80
  4. Step 4: Simplify right side
    219,114.20x = 33,127,432,195.38
  5. Step 5: Solve for x
    x = 33,127,432,195.38/219,114.20
  6. Step 6: Final answer
    x = 151,187.98

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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.