Home / 358,835.56-495,169.38-215,510.44

Finding the Fourth Proportional to 358,835.56, 495,169.38 and 215,510.44

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Solution

The fourth proportional to 358,835.56, 495,169.38 and 215,510.44 is: 297,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,835.56 : 495,169.38 = 215,510.44 : x
  2. Step 2: Convert to fraction form
    358,835.56/495,169.38 = 215,510.44/x
  3. Step 3: Cross multiply
    358,835.56x = 495,169.38 × 215,510.44
  4. Step 4: Simplify right side
    358,835.56x = 106,714,170,958.33
  5. Step 5: Solve for x
    x = 106,714,170,958.33/358,835.56
  6. Step 6: Final answer
    x = 297,390.18

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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.