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Finding the Fourth Proportional to 369,540.40, 554,310.60 and 132,890.80

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Solution

The fourth proportional to 369,540.40, 554,310.60 and 132,890.80 is: 199,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,540.40 : 554,310.60 = 132,890.80 : x
  2. Step 2: Convert to fraction form
    369,540.40/554,310.60 = 132,890.80/x
  3. Step 3: Cross multiply
    369,540.40x = 554,310.60 × 132,890.80
  4. Step 4: Simplify right side
    369,540.40x = 73,662,779,082.48
  5. Step 5: Solve for x
    x = 73,662,779,082.48/369,540.40
  6. Step 6: Final answer
    x = 199,336.20

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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.