Home / 311,931.20-467,896.80-170,213.60

Finding the Fourth Proportional to 311,931.20, 467,896.80 and 170,213.60

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Solution

The fourth proportional to 311,931.20, 467,896.80 and 170,213.60 is: 255,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,931.20 : 467,896.80 = 170,213.60 : x
  2. Step 2: Convert to fraction form
    311,931.20/467,896.80 = 170,213.60/x
  3. Step 3: Cross multiply
    311,931.20x = 467,896.80 × 170,213.60
  4. Step 4: Simplify right side
    311,931.20x = 79,642,398,756.48
  5. Step 5: Solve for x
    x = 79,642,398,756.48/311,931.20
  6. Step 6: Final answer
    x = 255,320.40

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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.