Home / 217,815.40-326,732.70-123,044.20

Finding the Fourth Proportional to 217,815.40, 326,732.70 and 123,044.20

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Solution

The fourth proportional to 217,815.40, 326,732.70 and 123,044.20 is: 184,571.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,815.40 : 326,732.70 = 123,044.20 : x
  2. Step 2: Convert to fraction form
    217,815.40/326,732.70 = 123,044.20/x
  3. Step 3: Cross multiply
    217,815.40x = 326,732.70 × 123,044.20
  4. Step 4: Simplify right side
    217,815.40x = 40,202,563,685.34
  5. Step 5: Solve for x
    x = 40,202,563,685.34/217,815.40
  6. Step 6: Final answer
    x = 184,571.72

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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.