Home / 320,434.20-442,206.76-177,197.04

Finding the Fourth Proportional to 320,434.20, 442,206.76 and 177,197.04

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Solution

The fourth proportional to 320,434.20, 442,206.76 and 177,197.04 is: 244,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,434.20 : 442,206.76 = 177,197.04 : x
  2. Step 2: Convert to fraction form
    320,434.20/442,206.76 = 177,197.04/x
  3. Step 3: Cross multiply
    320,434.20x = 442,206.76 × 177,197.04
  4. Step 4: Simplify right side
    320,434.20x = 78,357,728,939.99
  5. Step 5: Solve for x
    x = 78,357,728,939.99/320,434.20
  6. Step 6: Final answer
    x = 244,536.10

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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.