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Finding the Fourth Proportional to 245,332.20, 367,998.30 and 76,866.60

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Solution

The fourth proportional to 245,332.20, 367,998.30 and 76,866.60 is: 115,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,332.20 : 367,998.30 = 76,866.60 : x
  2. Step 2: Convert to fraction form
    245,332.20/367,998.30 = 76,866.60/x
  3. Step 3: Cross multiply
    245,332.20x = 367,998.30 × 76,866.60
  4. Step 4: Simplify right side
    245,332.20x = 28,286,778,126.78
  5. Step 5: Solve for x
    x = 28,286,778,126.78/245,332.20
  6. Step 6: Final answer
    x = 115,299.90

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1.5x scale

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.