Home / 311,939.20-467,908.80-170,221.60

Finding the Fourth Proportional to 311,939.20, 467,908.80 and 170,221.60

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Solution

The fourth proportional to 311,939.20, 467,908.80 and 170,221.60 is: 255,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,939.20 : 467,908.80 = 170,221.60 : x
  2. Step 2: Convert to fraction form
    311,939.20/467,908.80 = 170,221.60/x
  3. Step 3: Cross multiply
    311,939.20x = 467,908.80 × 170,221.60
  4. Step 4: Simplify right side
    311,939.20x = 79,648,184,590.08
  5. Step 5: Solve for x
    x = 79,648,184,590.08/311,939.20
  6. Step 6: Final answer
    x = 255,332.40

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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.