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Finding the Fourth Proportional to 215,167.40, 322,674.30 and 74,930.60

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Solution

The fourth proportional to 215,167.40, 322,674.30 and 74,930.60 is: 112,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,167.40 : 322,674.30 = 74,930.60 : x
  2. Step 2: Convert to fraction form
    215,167.40/322,674.30 = 74,930.60/x
  3. Step 3: Cross multiply
    215,167.40x = 322,674.30 × 74,930.60
  4. Step 4: Simplify right side
    215,167.40x = 24,178,178,903.58
  5. Step 5: Solve for x
    x = 24,178,178,903.58/215,167.40
  6. Step 6: Final answer
    x = 112,369.15

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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.