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Finding the Fourth Proportional to 360,069.36, 496,905.76 and 198,934.80

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Solution

The fourth proportional to 360,069.36, 496,905.76 and 198,934.80 is: 274,535.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,069.36 : 496,905.76 = 198,934.80 : x
  2. Step 2: Convert to fraction form
    360,069.36/496,905.76 = 198,934.80/x
  3. Step 3: Cross multiply
    360,069.36x = 496,905.76 × 198,934.80
  4. Step 4: Simplify right side
    360,069.36x = 98,851,847,984.45
  5. Step 5: Solve for x
    x = 98,851,847,984.45/360,069.36
  6. Step 6: Final answer
    x = 274,535.57

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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.