Home / 820,154.54-1,230,296.04-221,106.53

Finding the Fourth Proportional to 820,154.54, 1,230,296.04 and 221,106.53

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Solution

The fourth proportional to 820,154.54, 1,230,296.04 and 221,106.53 is: 331,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,154.54 : 1,230,296.04 = 221,106.53 : x
  2. Step 2: Convert to fraction form
    820,154.54/1,230,296.04 = 221,106.53/x
  3. Step 3: Cross multiply
    820,154.54x = 1,230,296.04 × 221,106.53
  4. Step 4: Simplify right side
    820,154.54x = 272,026,491,352.88
  5. Step 5: Solve for x
    x = 272,026,491,352.88/820,154.54
  6. Step 6: Final answer
    x = 331,677.11

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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.