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Finding the Fourth Proportional to 269,905.92, 404,597.76 and 129,630.72

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Solution

The fourth proportional to 269,905.92, 404,597.76 and 129,630.72 is: 194,320.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,905.92 : 404,597.76 = 129,630.72 : x
  2. Step 2: Convert to fraction form
    269,905.92/404,597.76 = 129,630.72/x
  3. Step 3: Cross multiply
    269,905.92x = 404,597.76 × 129,630.72
  4. Step 4: Simplify right side
    269,905.92x = 52,448,298,939.19
  5. Step 5: Solve for x
    x = 52,448,298,939.19/269,905.92
  6. Step 6: Final answer
    x = 194,320.67

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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.