Home / 298,977.20-447,688.20-193,223.60

Finding the Fourth Proportional to 298,977.20, 447,688.20 and 193,223.60

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Solution

The fourth proportional to 298,977.20, 447,688.20 and 193,223.60 is: 289,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,977.20 : 447,688.20 = 193,223.60 : x
  2. Step 2: Convert to fraction form
    298,977.20/447,688.20 = 193,223.60/x
  3. Step 3: Cross multiply
    298,977.20x = 447,688.20 × 193,223.60
  4. Step 4: Simplify right side
    298,977.20x = 86,503,925,681.52
  5. Step 5: Solve for x
    x = 86,503,925,681.52/298,977.20
  6. Step 6: Final answer
    x = 289,332.85

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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.