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Finding the Fourth Proportional to 360,076.80, 496,901.52 and 198,920.46

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Solution

The fourth proportional to 360,076.80, 496,901.52 and 198,920.46 is: 274,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,076.80 : 496,901.52 = 198,920.46 : x
  2. Step 2: Convert to fraction form
    360,076.80/496,901.52 = 198,920.46/x
  3. Step 3: Cross multiply
    360,076.80x = 496,901.52 × 198,920.46
  4. Step 4: Simplify right side
    360,076.80x = 98,843,878,933.10
  5. Step 5: Solve for x
    x = 98,843,878,933.10/360,076.80
  6. Step 6: Final answer
    x = 274,507.77

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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.