Home / 215,438.92-297,262.20-130,506.64

Finding the Fourth Proportional to 215,438.92, 297,262.20 and 130,506.64

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Solution

The fourth proportional to 215,438.92, 297,262.20 and 130,506.64 is: 180,072.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,438.92 : 297,262.20 = 130,506.64 : x
  2. Step 2: Convert to fraction form
    215,438.92/297,262.20 = 130,506.64/x
  3. Step 3: Cross multiply
    215,438.92x = 297,262.20 × 130,506.64
  4. Step 4: Simplify right side
    215,438.92x = 38,794,690,921.01
  5. Step 5: Solve for x
    x = 38,794,690,921.01/215,438.92
  6. Step 6: Final answer
    x = 180,072.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.