Home / 196,280.80-294,421.20-102,815.20

Finding the Fourth Proportional to 196,280.80, 294,421.20 and 102,815.20

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Solution

The fourth proportional to 196,280.80, 294,421.20 and 102,815.20 is: 154,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,280.80 : 294,421.20 = 102,815.20 : x
  2. Step 2: Convert to fraction form
    196,280.80/294,421.20 = 102,815.20/x
  3. Step 3: Cross multiply
    196,280.80x = 294,421.20 × 102,815.20
  4. Step 4: Simplify right side
    196,280.80x = 30,270,974,562.24
  5. Step 5: Solve for x
    x = 30,270,974,562.24/196,280.80
  6. Step 6: Final answer
    x = 154,222.80

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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.